PHAT Meaning of PHAT in English phat 1 /fat/ , n.Typesetting. fat (def. 25). [ by resp. ]phat 2 adj.Slang. great; wonderful; terrific. [ 1960-65, Amer. ; resp. of FAT ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012