Getting crazy horsed refers to a sexual move when a person sticks his/her penis into their partners nose and sprays theres seed into their partners nose. The semen then drips out of the partners nose and into there mouth. When this happens the giver must yell "YOU'VE BEEN ...CRAZY HORSED" in order for the move to be complete. All semen must be swallowed in order for the move to be completed.
Matt: "What is getting crazy horsed"
Grant: "Want to find out?"