The act of sleeping with someone who have been acting like a real pain in the ass in the hopes the it will relax them enough that they'll start acting like their regular self. This also includes any assisting actions that directly results in such a person getting laid.
1) My roommate was acting like a total dillweed for over two weeks until we talked this one blonde chick into performing a sexercism on him. Now he's acting like his nice ole' laid-back self.
2) My roommate is being such a bitch lately. We've got to do a sexercism on her soon or she gonna drive us all nuts.
Abusive acts against someone, especially in a relationship, to see how much crap one a person can take until they give-up, implode, leave or otherwise just break. This could also be used to refer to the abuse given in a severely rough and overtly dominantS&M relationship.
She is such a bitch. Instead of breaking up with a guy, she used to give her boyfriends the Crash Test Dummy Treatment until they just left her alone. But, her new guy likes receiving as much as she likes giving. That's why they get along so well.