1. Superhuman state of being, in which animal instinct takes over mind and body.

2. From the popular Sega arcade game, Altered Beast, in which the game hero transforms into various beasts with exceptional abilities.

3. Marshawn Lynch touchdown, Seahawks vs. Saints 2011
by ItsFuckingMe January 16, 2011
Get the Beast Mode mug.
The act of turning on an inner psychological switch so that you instantaneously become a beast at any time. Can also be used sarcastically if you know you're about to do something dumb or unbeastly. Often turned on by rap music or whatever pumps you up.
John was always a weak kid, and he got picked on a lot. That is, until he turned beast mode on and got ripped.
by Beast Number One March 29, 2008
Get the beast mode on mug.
A hype, energetic, outgoing, wilding out state of mind.
Whenever I hit the bar my mind goes into beast mode.
by gmoney September 19, 2003
Get the Beast Mode mug.
When in a state of serious training or at a level of high effort.
Animal was going Beast Mode in practice
by Carl Valle March 4, 2004
Get the Beast Mode mug.
From the series Beast Wars. Reverting to Beast Mode was when either Predacons or Maximals transformed into their animals forms. In Beast Mode, they were usually able to move faster and transforming also sped up their internal repairs. Also, in the first season, reverting to Beast Mode protected them from Energon poisoning, which was what happened when they were exposed to too much raw energon.
We've been transformed too long! Quickly! Revert to Beast Mode!
by Strikerflame August 8, 2005
Get the Beast Mode mug.
A mode of awesomeness; A pure blank state of mind, in which you become greater (more beastly) than anything else that stands before you.

Also used when Kicking ass at black ops and someone tries to talk to you, but instead of giving them an actual convo, you just tell them "I'm in Beast-Mode right now, GET OFF MY NUTS"
When someone is constantly "Beastifying" they are in "Beast-Mode"

Bob: Dude, Jack has been in Beast-Mode for like 3 straight weeks
Will: I know, He has a 215 killstreak
by baconballsack12992 October 18, 2011
Get the Beast-Mode mug.
An altered state of mind, most commonly achieved in the gym. Heavy weight's become lighter, more reps get performed. Beast mode is a state of heightened physical and mental capacity. Commonly associated with personal bests.
'Dude I'm going for 200kg on the deadlift tonight.'
'Have you got it in the locker?'
'Of course, Im going to be in beast mode'
by Beastttmode December 6, 2011
Get the Beast Mode mug.