A cheaper version of "Make it Rain". Usually done with quarters, although any change will do. By throwing coins up in the air for others to chase at your pleasure is "making it hail". This form is not limited to a strip club. This is commonly done when a gagle of homeless people are hogging a warm bus stop.
Trevor is a cheap bastard. We were at the strip club last night and he pulls out a roll of quarters, breaks it open and throws all the coins up in the air. People were yelling "make it hail" and running for cover.