fat lip

idiomatic

(idiomatic) A swelling on the lip, especially one resulting from a punch or other blow.

Japanese Meaning

打撲や衝撃によって唇が腫れること、唇の腫れ

After the alley fight he walked home with a fat lip and a bruised cheek.

路地での喧嘩の後、彼は腫れた唇とあざのある頬のまま歩いて家に帰った。

Sense（1）

(idiomatic) A swelling on the lip, especially one resulting from a punch or other blow.

He has a very ugly temper, and I have to be careful what I say to him or I'll end up with a fat lip.

fat lips

（ plural ）