To be hiding, waiting to ambush or attack someone, or simply to accost them unexpectedly.

(idiomatic) To conceal something about oneself, without the knowledge of which others cannot know one's true character or perspective.

(idiomatic, intransitive or transitive) To respond to an insult, accusation, or falsehood by saying the offender is lying, particularly in the context of provoking a challenge to a duel.

Synonym of give the lie to

A short period of rest while lying.

(Internet slang) The end being pursued is unattainable or misguided; the reward promised is false.

plural of lie bump

(informal) A painful hypertrophic red and white papilla on the tongue.

To cease rowing without shipping the oars. / (by extension) To rest; to take a break from working.

Used other than figuratively or idiomatically: see lie, behind. / To be the ultimate cause of.