Smack the Sack

To masturbate at such a high speed that your hand smacks your scrotum and makes a wet smacking noise.

Yea, I used to smack the sack, but then it got to loud and my parents heard.

by The Guy1 412435235235 January 10, 2009

She smacked on my nut sack

MAle genetalie that has been toyed around wiht a female lifeform.

OH man dude she done smacked on my nut sack.

by billy bong thornton June 15, 2004