口が酸っぱくなる

くちがすっぱくなる

Also written 口がすっぱくなる

Meanings

1. Expression, Godan verb to say the same thing over and over again; to talk until one is blue in the face

Kanji

• 口 mouth. Read as くち.
• 酸 acid. Read as すい.

Jinuma: Japanese Dictionary · Word lists