To come down on somebody

I think this means about sexual activity and you dont wanna hear that,,,or I can be wrong......

I believe the sexual idiom is 'to go down' on someone, Redkiddy, which is to have sexual intercourse. Slang, but not particularly obscene.


'To come down on' is usually, as you said, Mav, to blame aggressively or castigate for a perceived infraction. I think it can be expanded to mean 'verbally attack' in general.

Careful, careful, careful! The sexual activity uses the verb "go" in the same position as "come" in the original poster's question.

To come down on someone is indeed to criticize, usually harshly, to attack verbally, to scold, sometimes even to punish. (Nothing sexual.)

When my homework was late for the third time, the teacher really came down on me.
Don't waste so much