When you are going down in your brother and you pull your cock out of him and shoot your load on your baby brothers chest while making intense eye contact with your dad.
by Bubbaduck12 June 18, 2020
A Dirty Greyson occurs when you inject Boar Semen into both of your ears, let it crust, and then proceed to have your sexual partner scrape the semen crust out of your ear while grunting to that of a wild boar.
by Roodyy May 08, 2020