pitty-pat adv 1: as of footsteps; "he came running pit-a-pat down the hall" [syn: {pit-a-pat}, {pitty-patty}, {pitty-pat}, {pitter-patter}] 2: describing a rhythmic beating; "his heart went pit-a-pat" [syn: {pit-a-pat}, {pitty-patty}, {pitty-pat}, {pitter- patter}]