The Collaborative International Dictionary
Underlip
Underlip \Un"der*lip`\, n. The lower lip.
Wiktionary
underlip
n. The lower lip.
Usage examples of "underlip".
Idiots, with blear eyes and protending underlips, gibbered and whined.
Poliziano, of the heavy features and coarse black hair worn stringlike down over his ears and covering part of the rough skin, moistened his overly red, projecting underlip.
Ba'al had a deep cut in his underlip, but blue ointment was Sandy's sovereign remedy.
This morning he slashed cheeks, underlip, and Adam's apple: shaving-soap froth became childhood ice-cream sprinkled with raspberry vinegar.