If one has to ask such a question, that person is part of the problem.
Many years ago I went to an adult Halloween costume party dressed as a Zulu warrior. Face black, black leotards afro wig, nose ring, spear, shield, bleached chicken bones necklace. While another man showed up as a klansman. Then we all smoked a few joints, did some shots and had a good time. Probably get raided by the cops for that now - the costumes, not the pot. LOL
PS: and I drove to the party in the *daylight*.
My idea for a gut punch costume is a white T shirt, jeans, guitar, a pompadour wig, and a swastika armband. When people ask who it’s supposed to be tell them “John Cougar Deathcamp.”