shake a leg
• make a start; rouse oneself.
• "come on, shake a leg"
Similar:
hurry up,
get a move on,
be quick,
speed up,
get cracking,
get moving,
make it snappy,
step on it,
step on the gas,
rattle one's dags,
get one's skates on,
stir one's stumps,
get a wiggle on,
put foot,
make haste,