The first time my prim and proper, uptight asian wife was called a chink shocked me, but when she responded, yes fuck me like a ch. and she was spasming to hard to respond, shocked me. Used by more groups than just incels. Cuck/to be cucked/something is cucked
Originally referred to 'cuckold', more specifically a fetish where a man watches his wife being plowed by another man Now used as an adjective for everything incels dislike