(software, object-oriented programming) Synonym of Law of Demeter

(idiomatic) To be knowledgeable about, and competent at, a particular subject or task.

(intransitive, idiomatic) To be experienced and knowledgeable. / (transitive, idiomatic) To be very familiar with; to have a significant understanding of.

Alternative form of know which end is up

(idiomatic) To possess sound judgment or common sense; to have a clear understanding of a situation.

Synonym of beat the daylights out of

Alternative form of knock the living daylights out of

(figuratively) To be aware of one's position.

plural of knock-off

(informal) To understand one's situation, how to act in that situation, and the results of those actions.