calm your sack 

the "calm down" of horniness.

can be applicable to ladies aswell.

guy: oh man i want you so bad

girl: woah woah there, calm your sack these legs ain't open for no one except my boyfriend!

calm your sack by The Calm yo Sack Man November 16, 2011

calm your sack 

a different and more attention grabbing way of saying, "calm down," or "take a chill pill," or calm your balls"

George-"OMG that is definitely my shirt you're wearing "
Meg- "George, calm your sack, it's not even a big deal"

calm your sack by sonyagrace27 August 6, 2011