thrash on (one)

thrash on (one)

To berate, upbraid, or criticize one. I made a fairly innocuous comment about the situation, and everyone on the forum started thrashing on me for it! You don't need to thrash on the entire team for one person's mistakes.
See also: on, thrash

thrash on someone

in. to scold, criticize, or berate someone. She’s always thrashing on her roommate.
See also: on, someone, thrash