A transliteration of the words "barbecue sauce" and "mustard."
When these ingredients are combined, they form a sauce that is excellent for hot dogs, bratwursts, sandwhiches, etc.
Hey, when are you going to mix up some more bastard sauce?
by Chaoticist December 15, 2010
10 Words related to Bastard sauce
Top Definition
male ejaculate, but more specifically, ejaculate that creates a bastard child.
"the condom broke and i got my bastard sauce all up in her vag"
by molotovCT September 02, 2008

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