(idiomatic, informal) To punish someone.

Alternative form of show who's boss

Alternative form of show who's boss

present participle of teach someone a lesson

Used after someone has done something bad and has got punished for it, to learn from their mistake

Alternative form of show who's boss

(idiomatic, chiefly in the negative) To tell an expert how to do things.

(derogatory) It is easier to get a job teaching how to do something than to get a job actually doing that thing.

Alternative form of don't teach your grandmother how to suck eggs

Alternative form of don't teach your grandmother how to suck eggs