A phrase used to describe the action of someone who is purposely delaying an action or very deliberatelypushing off a decision to be made sometime later.
Jill is afraid to jump off the bungee jumpingdeck, so she is standing there buying time by talking about how afraid she is instead of jumping.
By Fredelia
Buy Some Time
To extend a period of time needed to obtain a goal or to pay a debt or aquire something.
"I hid out from Vinny for a while to buy some time and save up the money for my outstanding debt to keep my legs from getting broken"
