pitter-patter UK /ˈpɪt.əˈpæt.ə/US /ˈpɪt.ɚˈpæt.ɚ/noun 1verb 1forms 3 noun1 •A soft, percussive sound, as of tiny feet, or of rain on a rooftop; patter.Once or twice I heard a faint pitter-patter like the feet of the dog going hither and thither on the sand far below me, and there were more bird-like sounds, but that was all. — 1895 verb1 •To patter; to scurry.The rain was coming down heavier now, the drops pitter-pattering on the roof of the truck. — 1996 formspitter-pattered · pitter-pattering · pitter-patters