Entering a toilet cubicle that has mobilityassistance rails, removing all pants, undergarments, socks and shoes before standing on the rails and taking a glorious dump from the high heavens.
Ingesting 2 illicit drugs at the same time or in rapid succession.
The term is derived from 2 words. One being the small skid town of Aldergrove and the other term "highball" being a drink consisting of 2 ingredients. The exact origin of this term is debated by historians even to this day but it is believed to have originated in the small hamlet of Springfield behind what used to be Safeway
Bro 1: Holy. Chad is fucking mangled right now Bro 2: Ya man he smoked crack right after eating a bunch of ecstacy Bro 1: oh he had an Aldergrove highball.