diarrhea of the mouth

derogatory uncountable vulgar

(derogatory, vulgar) foolish talkativeness, logorrhea

Japanese Meaning

無意味でくだらない口数の多さ、たとえば不用意におしゃべりを繰り返す様子 / 軽薄で冗長な言葉の吐出（話が多すぎる状態）

The politician's diarrhea of the mouth cost him the election.

その政治家の無駄口が原因で、彼は選挙に敗れた。

Sense（1）

(derogatory, vulgar) foolish talkativeness, logorrhea

He's just a kid, and he's got diarrhea of the mouth, but he's pretty cool.