くちゃくちゃ

くちゃくちゃ
adverb, onomatopoeia
noisily (chewing); crumpled, messy
informalonomatopoeiadescriptive
1. noisily (chewing), with mouth open
The sound or manner of chewing food loudly with the mouth open.
くちゃくちゃ食(た)べないで。
Don't chew with your mouth open.
ガムをくちゃくちゃ噛(か)んでいる。
He's chewing gum noisily.
隣(となり)の人(ひと)がくちゃくちゃ音(おと)を立(た)てて食(た)べるので気(き)になる。
It bothers me that the person next to me eats making chewing noises.
2. crumpled, wrinkled, messy
The state of something being crumpled, wrinkled, or in disarray.
紙(かみ)がくちゃくちゃだ。
The paper is all crumpled up.
ポケットの中(なか)でレシートがくちゃくちゃになった。
The receipt got all crumpled up in my pocket.
くちゃくちゃに丸(まる)めた紙(かみ)をゴミ箱(ばこ)に投(な)げた。
I crumpled up the paper into a ball and threw it in the trash.

Usage

Sense 1 describes a sound considered rude in Japanese dining etiquette. Chewing with the mouth open (くちゃくちゃ食(た)べる) is a common pet peeve. A person who chews noisily may be called a くちゃらー (slang).

For sense 2, commonly used with になる (to become crumpled) or にする (to crumple up).

Related words

くしゃくしゃ is a near-synonym for sense 2 (crumpled), and also describes messy hair.

Related Words

Compare: ぴちゃぴちゃ (lapping)
general
Added 2026.2.8 14:52 · Revised 2026.9.2 13:01
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