definition of
pitty-pat

[1] #1 pitty-pat r. [pit-a-pat, pitty-patty, pitter-patter] as of footsteps; "he came running pit-a-pat down the hall". wn

[2] #2 pitty-pat r. [pit-a-pat, pitty-patty, pitter-patter] describing a rhythmic beating; "his heart went pit-a-pat". wn