Buttermilk sauce from Jack In The Box, jokingly refered to as Jack's seminal fluid.
"You got any extra Jack Sauce?"
by PseudoIntellectual December 28, 2003
2 more definitions
1. Byproduct of male masturbation
How the fuck did I get jacksauce in my hair?!
by berserker256 May 16, 2003
The orange sauce that they don't have anywhere else on the planet. I believe it is Thousand Island mixed with French Dressing.
May I have a Jumbo Jack with extra Jack sauce?
by Seraph April 18, 2005