a quick succession of light rapid sounds(noun.event)
Example: The patter of mice.
The patter of tiny feet.
source: wordnet30
A quick succession of slight sounds; as, the patter of rain; the patter of little feet.(noun)
source: webster1913
The language or oratory of a street peddler, conjurer, or the like, hence, glib talk; a voluble harangue; mere talk; chatter; also, specif., rapid speech, esp. as sometimes introduced in songs.(noun)