slag

Universal Words noun, verb noun 1 [U] the waste material that remains after metal has been removed from rock 2 [C] (BrE, slang) an offensive word for a woman, used to suggest that she has a lot of sexual partners verb (-gg-) PHRASALVERBS slag sb<->off (BrE, slang) to say cruel or critical things about sb: I hate the way he's always slagging off his colleagues.