moon slap 

To slap a man/woman hard on the forehead. Works particularly well the balder the recipient is. It is a classic Three Stooges style move.

I'm going to moon slap Barry for being so stupid.

moon slap by Sir Glame February 24, 2010

Bitch Slap you too the moon 

A term used to describe the administration of a bitch slap so fierce that the target of said slap manages to break the gravitational pull of the earth and end up on the moon.

"Seriously dude, you keep that up and I will Bitch Slap you too the moon"

Bitch Slap you too the moon by Berkut666 November 23, 2011