when you are enjoying hardcore sex, you open the girls vaginal area then scream in it, and you draw back your fist then simpley toss it into the girls vagina. Formaly knowned as getting fisted.
open, scream like a wildabeast, then PUNCH IT. This might hurt, but if you're a whore that is used to having spaceous things in you it will be like another day at the beach. cha bra, cave beasting is great
"A.K.A Mode of the Beast" A action that randomly occurs in Drunken stages or city cruises. A sudden urge to dominate all living forms of life. By Yelling, Mental, or physical actions. Also has Different levels. From 1 to beast mode level 23.
Beast Mode is what you shout during War of Emperium on Ragnarok Online when you survive a GFist by Robbie Analog, "The Greatest Champion on Loki, and Quite Possibly the World."
You simply shout "BEAST MODE!!!!!!!!!!" in public/guild chat whenever you survive Robbie Analog's GFist