mudcohol
When playing a concert, mudcohol usually accumulates from the combination of spilled beer/liquor and dirt. This sludgy combination is ESPECIALLY worse when playing a show without a stage and the intoxicated crowd is capable of getting closer to the performers.
Due to the fact that the punk band played a show in the barn, the rhythm guitarist's gear was trashed because it had spent half of the setlist in a puddle of mudcohol.