Beast Mode 

going crazy just pwning every one in site a complete level above the oppent

Chase:Did you just Michail go Beast Mode on that n00b.
Matt:I know he so Beast.

Beast Mode by Cha$e (LB) June 21, 2007

Beast Mode 

during sex, when a guy suddenly (unexpectedly) decides to switch to anal and take it up a notch, much to his partner's alarm and horror

Jill was loving vaginal sex with jack, until he yelled "BEAST MODE!!" shoved it in her anus, and started violently pounding her really hard and fast

Beast Mode by 91m2b September 20, 2009

Beast Mode 

The act of climbing the stairs using all four limbs to crawl up at great speed.

Person 1: "Wow, you climbed those stairs quick?"

Person 2: "Im in a rush man, had to go into beast mode"

Beast Mode by PizzaBoy6000 July 17, 2016

Beastmobile 

In the same family as a Mercury Grand Marquis or Ford Crownvictoria. A fat powerfull car that is capable of doing burnouts and drifts but you'd never do it in public because it's actually quite embarassing to drive.

I took my grandparent's beastmobile out for a spin today.
or
I tanked up my mom's beastmobile yesterday.. it's like a botomless pit!

Beastmobile by Mr. Original July 28, 2011

pure beast mode 

In a supreme state of beasting it day in day out or doing something in great and superior to everyone else out there

Did you see him playing basketball, he is in pure beast mode right now.

pure beast mode by Bben September 28, 2007

Beast Mode 

The state in which a human (frequently male) is completely dominating what they are doing.

Will was in complete beast mode as he broke through the defence and sacked the quarterback.

Beast Mode by Asian.is.win August 11, 2006

Beast Mode 

The state of mind you are in when you are intoxicated with liquor and marijuana at the same time. From the song ''Beast Mode''.

-"Yo man, I'm all fucked up on hennesey and some chronic."

_"Oh, you mean you're in "Beast Mode".

Beast Mode by IV:XX May 23, 2009