Japanese Casual Speech Quiz

Sound natural with friends — not like a textbook. やばい, まじで, めちゃ, てか — casual Japanese words that natives use every day but rarely appear in formal study materials.

Casual Japanese (タメ口) is what you hear in anime, YouTube, and conversations with Japanese friends. This quiz covers the colloquial vocabulary that bridges the gap between classroom Japanese and the real thing. Select a JLPT level to filter, or try All Levels for a mixed session.

  1. Choose a JLPT level (or all)
  2. Read the word and pick its casual meaning
  3. Review missed words and beat your best score

Select a level to begin:

Immerse Japanese Extension

Casual words like やばい and まじで are Japanese-only — they won't appear in English text. But the 11,000+ standard vocabulary words that do appear in your English reading? Immerse Japanese handles those automatically, injecting Japanese as you browse. Free N5 tier.

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Frequently Asked Questions

What is casual Japanese (タメ口)?

Casual Japanese (タメ口, tameguchi) is the informal speech register used with friends, family, and social equals. It drops formal verb endings, uses shortened forms, and includes slang. Words like やばい (crazy/amazing), めちゃ (extremely), and まじで (seriously) are core casual vocabulary that textbooks rarely teach but natives use constantly.

Why is casual Japanese not taught in textbooks?

Most textbooks focus on polite speech (丁寧語) because it's safer for learners — formal language is appropriate everywhere. But casual vocabulary is what you hear in anime, YouTube, and conversations with Japanese friends. Learning it is essential for understanding native content and building real connections.

Why don't casual Japanese words appear in the Immerse Japanese extension?

Immerse Japanese replaces English words on English websites with their Japanese equivalents. Casual words like やばい or てか are Japanese-only expressions — they don't appear in English-language text. Use this quiz for casual vocabulary and the extension for everything that appears in your English reading — together they cover all bases.

When is it appropriate to use casual Japanese?

Casual Japanese is appropriate with friends of the same age, family members, and in relaxed settings. It is NOT appropriate with strangers, in professional settings, with customers, or when speaking to elders and superiors. Always default to polite speech (ます/です) until invited to speak casually.

Related tools: Onomatopoeia Quiz · Expressions Quiz · JLPT Vocabulary Quiz