Fingerwigglin' 

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' trumpet monkey.

Fingerwigglin' by Cannonballs Badderly January 13, 2009