Ok let me explain....
Double shimmy
double shimmy left - flick shotstick to the left twice.
double shimmy right - flick shotstick to the right twice.
I like to call them one side shimmy or one side fakes.
REMEMBER....DO NOT PRESS L2
fake left to shot over right shoulder - flick left then Hold to the right
fake right to shot over left shoulder -flick right then Hold to the left
Its pretty easy once you get the hang out it.