From Longman Dictionary of Contemporary Englishrough somebody ↔ up phrasal verbinformalHIT to attack someone and hurt them by hitting them → rough→ See Verb table
Examples from the Corpus
rough up• As soon as they left, the agents went after them and roughed them up.• If I did, do you think I would be sitting here letting you rough me up?• I hardly roughed him up at all.• They roughed you up because you talk funny?• If you think I've forgotten how to rough a man up, I can assure you I haven't.• Each day so far we'd driven into the left rough and finished up taking bogey-fives.• The separation is at its most apparent in the summer, when the males feed on rougher pastures higher up the mountain. 