upper lip

noun — 2 senses

upper lip

noun
1

Synonym of labium superius oris.

2

Humorous, Sarcastic, Slang, Vulgar A sarcastic or jocular response to a person who has performed oral sex on someone.

Derived terms
stiff upper lip

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.