present participle of lip sync

(informal, often imperative, idiomatic) To refrain from or to stop talking; to be quiet; shut up.

a kind of snail, Cepaea hortensis, very similar to the grove snail, but with a white band at the lip of the shell.

(idiomatic) The quality of being resolute and showing self-restraint, stereotypically associated with the British; especially as keep a stiff upper lip.

plural of white-lipped snail

(idiomatic) To remain silent, especially in order to keep a secret or to avoid saying something inappropriate.

(idiomatic) To forcibly prevent oneself from speaking, especially in order to avoid saying something inappropriate or likely to cause a dispute.

Ogcocephalus porrectus

A variety of batfish, Ogcocephalus darwini, native to the Galapagos Islands and Peru, which is noted for its bright red lips and inability to swim.

(idiomatic) To speak confidently and unhesitantly but without careful forethought or a reliable knowledge of important facts pertaining to the subject matter.