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
By Neven
When a person gets super hyphy.
Chris Brown: President and CEO of Beast Mode Marshawn Lynch: Vice President
By Vagota 425
The result of stealing a jelly doughnut from an overweight, stereotypical american
" Like, I totally took that guys doughnut and he went all beast mode on me!"
By ChillyCheeseSteak
Beast Mode is the unbridled raping of someone in a clutch match.
Cactuar vs Darkrain 4 is the quintessential Beast Mode match.
By ShineBear
When one Huffs Spray paint,looses control of themself,acts completely sad, finds girls under 12 years old extremely attractive, and looses all common sense
Dan: Did you hear Brendan busted in his pants when he danced with the girl he baby sat for, Lauren Phil:Haha ya he must have really been in Beast Mode
By Dan The chill dannk