Top Definition
When you are double penetrating a girl doggie style, you are slappin' sacks with the other gentleman involved.

Howard and I were slappin' sacks the other night and that bitch pulled out shot his wad on my nuts.
by whitey63 November 27, 2006

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.