くちをすっぱくしてい
Meanings
Expression
Verb (5-dan, う)
1. to say time and time again; to say till you're blue in the face
Composed of
mouth; opening; hole; mouth (of a bottle); spout; gate; door
vinegar
to say; to utter; to name; to call; to go (e.g. "the alarm went ping"); to make a noise