It means.. Take action or Get going or Get moving or move quicker
Shake a leg means to hurry up. For example "Shake a leg we are already late for the game."
This is not an idiom that I have ever heard. Perhaps you mean an arm AND a leg, which is an exaggerated way of saying something is really expensive.
Shake a Leg was created on 2005-10-10.
"Shake a stick at" is an idiom meaning "to form a conception of (as by counting or imagining)". So, "more than you can shake a stick at" means "more than you can count/imagine".
I believe that when Taylor shakes his leg it is a nervous disorder...I have the same one.
get a leg up on
An example sentence would be: "Are you pulling my leg? "
No, because you have used the term incorrectly. The idiom is YOU'RE pulling my leg, as in YOU ARE doing it."I know you're just pulling my leg when you say you can fly."
No, it's slang.
You can cut off the circulation in your leg if you sit for too long causing your leg to tingle or feel numb. Shaking your leg might be a way to stimulate circulation again.
The idiom "quake in your boots" means to feel extremely scared or intimidated. It implies a strong sense of fear or anxiety that causes a person to tremble or shake.
tremors or ticks in the context of torettes syndrome.
Most idioms can be drawn. You could draw "raining cats and dogs" easily, as well as "shake a leg" or "two left feet." Just read the literal meaning instead of the figurative one.