Ex. Kanye West crashing the stage at the VMA's and stealing the mic from a 19 year old girl during her acceptance speech to talk trash. Weak Sauce.
by Loser Behavior Hater September 14, 2009

by word2k9 July 9, 2009

by Sergio Alvarez November 8, 2006

by yeahhhhhhhhhhhhhhhhhhhhhhh July 4, 2011

by Pee Wee May 1, 2003

applies to someone who tries to impress you or do something cool, but instead acts similarly to a mentally retarded kid hooked on ice
*Andrew(at school recess in the front of hot chicks):Hey guys this sucks lets play soccer in the hallways!!!
*Aaron: That is fuckin weak-sauce!
*Aaron: That is fuckin weak-sauce!
by mauiyob August 3, 2008

The sauce made from Fecal matter and Urin mixed together in a tupperware container. Which is then heated up in the microwave and thrown onto someones face. Causing third degree burns.
by BruceShee/Pipsy June 11, 2006
