Alcohol enriched foods that get you all buzzed up and eventually shit faced. This word could be used to describe the following: Jello shots, vodka soaked fruits, and chicken injected with absinthe.
Originates from the french word for shit "Merde"
Guy #1: Marty didn't even drink at the party, and he's totally shit-faced!
Guy #2: He was totally munching on some merdeboyantoodle.
Guy #1: That will do it!