Top Definition
The horrible chemical reaction that results when a heavy night of drinking meets all the crappy food you have ingested in the previous 12 hours.

See also. Old Milwaukee Beer and MD 20/20.
When I got up this morning, I painted the toilet bowl with about 4 quarts of Bar Gravy.
#squirt #touch the cloth #shit through a screen #runs #stool
by BionicGranny November 30, 2012
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