cigar UK /sɪˈɡɑː(ɹ)/US /sɪˈɡɑɹ/noun 2forms 1phrases 2 noun2 •a fat roll of whole tobacco leaves that someone lights and smokes •(slang) The penis. formscigars Phrases with cigar close, but no cigarUsed to indicate that one is almost correct or has almost succeeded, but not quite. no cigarUsed to indicate that one is not correct or has not succeeded.