noun, noun or participle which takes 'suru', transitive verb
verbal attack; tongue-lashing
A playful or emphatic term for attacking someone with words, often used in casual or humorous contexts. It is a coined word playing on 攻撃 (こうげき, 'attack') by replacing 攻 with 口 (mouth).
See also: 攻撃
彼は会議で上司に口撃を浴びせた。
He launched a verbal attack on his boss at the meeting.
ネット上で口撃するのは簡単だが、後で後悔することもある。
It's easy to verbally attack someone online, but you may regret it later.