ムカつく
むかつく
verb (godan)
to feel irritated; to be pissed off
1.
to feel irritated; to be annoyed; to be pissed off
Slang expression for feeling strong annoyance or anger toward someone or something.
あいつの態度にムカつく。
His attitude pisses me off.
ムカつくことを言われた。
Someone said something that annoyed me.
2.
to feel nauseous; to feel sick
The original meaning: to feel queasiness or nausea, especially in the stomach.
胃がムカつく。
My stomach feels queasy.
SLANG/COLLOQUIAL:
Originally meant "to feel nauseous" (sense 2), but now primarily used as youth slang for "to be irritated/annoyed" (sense 1).
WRITING:
Often written in katakana (ムカつく) to emphasize its slang nature, though hiragana (むかつく) is also used.
RELATED:
- ムカムカする: to feel nausea; to be irritated (onomatopoeia)
- イラつく: to be irritated (similar slang)
- 腹が立つ: to be angry (standard expression)
REGISTER: Casual/informal. Avoid in formal situations.