ばか
baka
The Japanese phrase for "you idiot" is ばか (baka).
The term ばか is used as an insulting term to call someone stupid or foolish. Depending on the tone and context, it can range from a playful tease between friends to a harsh insult. When used in the phrase このばか, it functions like the English "you idiot" when addressing someone directly.
Which one should you use?
While ばか is understood throughout Japan, the term あほ is preferred in the Kansai region (such as Osaka or Kyoto) and can sometimes feel more affectionate than the harsher ばか. Additionally, adding やろう to the end of ばか to create ばかやろう makes the insult feel more aggressive and masculine.
Is it said differently in some regions?
In the Kansai region, the word ボケ is commonly used instead of ばか, such as in the phrase お前はボケやないか (Aren't you foolish?).
How does it change in a sentence?
Using the demonstrative この before ばか is a common way to translate the English "you idiot" when addressing someone directly.
How do you pronounce it?
baka
Did you know?
- In some contexts, ばか can be used as an intensifier meaning 'extremely' or 'absurdly', such as ばか高い to describe a price that is 'stupidly expensive'.
- In Japanese comedy, particularly 'Manzai', the roles of 'Boke' and 'Tsukkomi' define the dynamic between the 'idiot' and the 'straight man'.
- Despite its heavy usage in anime and media, using ばか toward a stranger or a superior in real life can be socially catastrophic.
Examples in context
- トムのばか！Tom, you idiot!Tatoeba #2432356 by tommy_san, translation #2592796 by WestofEden
- このばかやろう。You idiot!Tatoeba #461946 by tamsanh, translation #418475 by Scott
- もう、本当にばか！mou, hontou ni baka!Geez, you're such an idiot!
- 1 more sentence on Tatoeba
Example conversation
Himari is scolding Kenta after he forgot their anniversary.
- 陽葵 Himari健太、本当にばか！Kenta, hontou ni baka!Kenta, you're such an idiot!
- 健太 Kentaごめん、忘れてたんだ。gomen, wasuretetanda.I'm sorry, I forgot.
- 陽葵 Himari信じられない。shinjirarenai.I can't believe it.
- 健太 Kenta次は絶対に忘れないよ。tsugi wa zettai ni wasurenai yo.I definitely won't forget next time.
Sources
- Pronunciation: Wiktionary entry ばか, CC BY-SA 4.0, dump of 2026-09-26.
- Example sentences: Tatoeba CC BY 2.0 FR.
