Sac Slap 

A phrase used jokingly meaning to :

a) slap your ball bag against your leg

b) to slap someone with your ball bag

I'm gonna sac slap yo in da face!!

Sac Slap by Pyro June 16, 2004

sac tap butt slap 

This is a truly humiliating attack one can do to a boy. It involves the simple act of hitting them in the balls, usually with a quick flick motion. When he is doubled over in pain it is followed by a painful slap on the ass. It’s a spanking they won’t forget and whoever does it is a badass.

Example 1
Jake: Why is everyone laughing at robin?
Tanner: Jordan attacked him. It was a sac tap butt slap
Jake: Damn!

Example 2
Brent was standing around minding his own business when Robin and Derek got him with a sac tap butt slap. Robin hit him in the balls, Derek slapped his ass. It was embarrassing for Brent.

sac tap butt slap by Elsis December 28, 2018