The act of defenestrating someone (throwing someone out the window) then jumping after them.
Guy 1: Damn, Jack did some fewerty
Guy 2: What?
Guy 1: He threw a random guy out the window then jumped after him.
Guy 2: We should really get Jack drug tested.
The sexualact of knocking one's partner out with a hard, blunt object and proceeding to hold them upside down and, upon climax, ejaculating into their nostril.