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SlangWordsOnline

世界のスラングを読み解くガイド

16か国、862語のくだけた言葉と言い回し。意味、言い方、そして使えば失敗する場面まで書いています。

例えば vibe, bare, bogan.

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国を選ぶ

スラングは言語よりも先に土地のものです。その言葉が実際に話されている場所から始めてください。

英語圏

ヨーロッパ

ラテンアメリカ

東アジア

よく読まれているテーマ

実際に検索されているページです。一つの国、一つのテーマについて、掲載している語をすべて並べています。

各国から一語ずつ

完全な項目がどんなものかの見本です。語義、訳付きの用例、そして本当に分かっている場合の語源が並びます。

辞書アプリでは見つからない文脈

スラング辞典に価値があるとすれば、それは翻訳アプリが答えられないことを教えてくれる場合だけです。その言葉が親しみなのか敵意なのか、誰に向かって言っていいのか、そして誰もが繰り返す語源の話が本当なのか。定説が割れているところでは、割れていると書きます。差別語であるところでは、それも書いたうえで、それでも掲載します。耳にしたときに理解できなければ困るからです。

Frequently Asked Questions About Slang

What are slang words?

Slang words are informal words or phrases that are more common in spoken language than in writing. They often originate within specific social groups, subcultures, or regions and may carry meanings that differ from their standard dictionary definitions. Slang can express identity, humor, or attitude and tends to evolve much faster than formal vocabulary — words that were edgy a decade ago can feel dated today.

What is the newest slang?

Slang evolves constantly, with new terms emerging from social media platforms like TikTok, Twitter/X, and Instagram every week. Some recent examples include “delulu” (delusionally optimistic), “rizz” (charisma, especially in flirting), “slay” (to do something exceptionally well), and “ate” (nailed it, did an amazing job). The fastest way to stay current is to follow trending conversations online — or browse our regularly updated collection by country.

How does slang differ from formal language?

Formal language follows standard grammar and vocabulary rules and is used in professional, academic, or official settings. Slang, by contrast, is casual, often breaks grammatical conventions, and is tied to specific communities or generations. A word like “cool” is understood everywhere, but slang terms like “chuffed” (British for pleased) or “naco” (Mexican for tacky) only make full sense when you know the culture behind them.

Why do different countries have different slang?

Slang is shaped by local culture, history, and social dynamics. Even countries that share the same language — like the US, UK, and Australia for English, or Mexico, Spain, and Colombia for Spanish — develop completely different slang vocabularies. This happens because slang reflects lived experience: local food, music, humor, class structures, and media all leave their fingerprints on informal speech.

Is it okay to use slang in everyday conversation?

Absolutely — slang is a natural part of how people communicate, and using it appropriately shows social awareness and fluency. The key is context: slang fits perfectly in casual conversation, texting, and social media, but may be out of place in a job interview, academic paper, or formal email. Knowing when to switch registers is itself a language skill.

How can I learn slang from other countries?

Immersion is the best teacher — watching local TV shows, following social media creators from that country, and talking with native speakers all help. A curated resource like Slang Words Online also gives you the context dictionaries miss: who uses the word, whether it is friendly or offensive, and how it actually sounds in a sentence. We cover sixteen countries and thousands of terms, each with definitions, pronunciation guides, and real-world examples.

About Slang Words Online — Your Global Slang Words Hub

Every language has two lives: the version that shows up in textbooks, and the version that actually gets spoken on the street, in group chats, and across bar counters. Slang Words Online exists for the second one. We built this site as a slang words hub for anyone who has ever overheard a word in conversation, in a song lyric, or in a subtitle and thought: what on earth does that mean? Whether you are trying to decode British slang picked up from a London pub, American slang that keeps showing up on social media, or Australian slang your co-worker drops without a second thought — the answer is here, explained with the kind of context a translation app will never give you.

Our slang words library currently covers sixteen countries and eleven topic categories. You can browse British Slang and American Slang alongside Australian Slang, Canadian Slang, and Irish Slang — the big branches of the English-speaking world. Then there are the Romance-language collections: Mexican Slang, Spanish Slang, Italian Slang, French Slang, Colombian Slang, Cuban Slang, and Dominican Slang, each reflecting a distinct dialect with its own rhythm and attitude. We also cover German Slang, Russian Slang, Japanese Slang, and Korean Slang — four vocabularies where the distance from the textbook version is large enough that slang almost functions as a separate register.

What makes this collection different from a quick Google translate? Depth, mostly. Every entry includes the definition — often more than one, because slang words rarely mean just one thing — alongside a pronunciation guide that covers how the word actually sounds, not how it ought to sound. We provide worked examples: full sentences in the original language, translated line by line, so you can see the word doing its job in a real context. And we tell you the things that matter most and that dictionaries usually leave out: whether the word is affectionate or hostile, whether it is safe for mixed company, and whether the cute origin story everyone shares on the internet is actually true.

The topics are organized the way people actually search. Instead of dumping hundreds of entries on one page, we split them into categories that reflect what slang is for: Slang for Approval & Praise, Slang for Greetings & Address, Slang for Insults & Complaints, Slang for People, Slang for Money & Work, Slang for Food & Drink, Slang for Going Out & Partying, Slang for Romance & Flirting, Slang for Emotion & Reaction, Slang for Filler Words, and Slang for Everyday Things. Each of those lives under a specific country, because the same subject — money, say, or insults — produces completely different vocabulary depending on who is speaking and where.

This site is free to use, regularly updated, and available in nine languages so non-English speakers can navigate the whole library in their own language too. Think of Slang Words Online as the slang words library you always wished existed: thorough, honest, and written by people who actually care whether you embarrass yourself at the wrong moment. Dive in — pick a country, pick a topic, or just search for the word you heard.