plastic man will be ripped by shaggy.,he been defeated by this method multiple times when he facing superman level beings,like doomsday,and superman had also managed similar feat iirc
STO
StoicAvenger
Maybe Plastic Man could jump in his ass like a giant dildo and expand. I mean this guy has gotten as big as a building. Just imagine it. Could Shaggy shake off such a brutal pounding? You be the judge.