[Lindsey Graham]

Cuck is equivalent to slut or whore. These are words that hit deep because they denigrate the inherent value of the person. There is no greater humiliation for a man than being in a relationship with a woman who is fucking other guys. Only the lowest-value of men are in this situation. In the same way, no man wants to be in a relationship with a slut or whore. The word cuck hurts because it means you are worthless, it hits the ID, and attacks your core value as a person.