I shall cut you with a bladed object because you are a moron/bonehead/idiot/buffoon/tool/person who slept with my mother or sister or girlfriend (or father or brother).
Ray: Hey dawg, I justknocked yo sista UP!
Tom: I cut you like the sucka you is!
I appreciate youdefending me against the haters, or giving me a place to stay/food, or jumping into the fight to defend me, or believ8ng in me - you cut for me, I cut for you.