To move away (from).
Get away from me!
(with 'from' when used with an object) To avoid capture; to escape; to flee (from).
I almost caught the critter, but it got away from me.
(with 'to' when used with an object) To take a break from one's present circumstances; to journey (to), especially on holiday.
Next weekend we're hoping to get away to the seaside.
To start moving; to depart.
The train got away exactly on time.
To slip from one's control.
I can't cope any more. Things are getting away from me.
Expressing disbelief.
You bought that for twenty pounds? Get away!