The Oxford Thesaurus An A-Z Dictionary of Synonyms - rap v.

1) knock, strike, tap, hit: The policeman rapped smartly at the door with his truncheon. 2) criticize, rebuke, scold, reprimand, rap over the knuckles, Colloq knock, Brit tick off: We were severely rapped for dropping litter on the pavement. 3) converse, talk, chat, gossip, Colloq gab, Slang chew the fat or the rag: That guy was so fascinating - we could rap with him for hours. --n. 4) knock, tap, hit, blow, crack, stroke, cuff, whack, thwack, punch, Colloq belt, clout, Slang sock, slug, biff: The punishment for failing to complete the assignment was a severe rap on the knuckles. 5) conversation, discussion, chat, confabulation, talk, dialogue, discourse, colloquy, Colloq confab, Slang chiefly US and Canadian bull session, rap session: We used to get together for a nice long rap now and then. 6) responsibility, blame; punishment, sentence; charge, accusation, indictment: Why should he have to take the rap for something you did? The witness failed to show up, so Baxter beat the rap.