Top Definition
The end nub of a Subway, Quizno's, Firehouse, or some other sub sandwich shop, sub (usually on the 12") that has no sort of meat or vegetable to be heard of, only a large amount of mustard, ranch, or some other sauce on the sandwich, that has somehow ventured down the sandwich, into the end. A sauce delta, if you will. Perhaps even a resevour tip for sauces.

A prime opportunity to regret wearing a white shirt, and getting mustard on your sandwich.
Man 1 - "Oh dude, what's happening with that sub there? Aren't you going to finish it?"
Man 2 - "Nah man, it's nothing but a saucewich, I'll just throw it away."

"SHIT! I dropped my saucewich on my fucking khakis! RUINED!"
by hey-imdallas October 05, 2009

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.