The act of beasting on a potential mate of the opposite sex. Your pure animal instinct kicks in, and you pursue your target aggressively.
Friend---Yo, your roommate Sean is wiling out there on the dance floor, he's particularly dry humping Diana . -- Diana roommate told me to call him off her Roommate--Naw man, he's in Beast Mode, you can't tame him.
By Omegaloddy
Beast Mode it usally refered to in the south as after about one hour from taking ecstacy, you start to feel alot more out-going, open to everything, and if you are in the club, then every song that is played is "YOUR SONG". When out on the dance floor, you become a Beast wit it.
Ol G boy was on the dance floor goin in beast mode. Popped one, popped two, now I'm goin in Beast Mode.
By TheCandyMan
Beast Mode is what you shout during Guild Siege (War of Emperium) on Ragnarok Online when you survive a Guillitine Fisted 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
A decepting looking girl who is freakishly ugly.
She looked fine from behind, but when she turned around she was in Beast Mode.
By ickzer1
"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.
Kelvin hit beast mode 23 in his retarted eyepatch pose.
By Dubiasay