To pay for something, spend or donate money
burn a hole in someone's pocket
To cause someone to spend money or be tempted to spend money.
push the boat out
To do something, especially spend money, more extravagantly than usual …
hand over
To relinquish control or possession of something to someone.
fork over
To pay, give up or hand over a large amount of money.
hand down
To donate (as second hand.)
wave of the hand
A simple gesture, as used for greeting, command, dismissal, or summoni …