Fingerwigglin' describes a musical phenomenon wherein an alleged musician wiggles his or her fingers and presumes to convince the listener that the sound produced thereby is music. In Jazz, a player who knows a few scales (especially the Pentatonic Blues scale) but has little to no chord knowledge and can't arpeggiate for crap often fills entire sets of tunes with mind-numbing fingerwigglin'.
Man, that pianist tonight was on fire! Too bad most of what he was doin' was obliterated by that fingerwigglin' trumpetmonkey.
The neighborhood, school yard, or community slut/whore/milf....basically anything that enjoys a good fingering a little too much
Jarod-"Do you know Michelle?"
Jimmy-"No, who is she?"
Jarod-"You know! The ole fingerbag that live a couple houses down?"
Jimmy-"OHHHHH! That Michelle!