Can mean just pretty much being tight. Is also used as just 'beast'. A state of being extremly cool, tight, raw, etc.
Person 1: Man, did you see O'Boy score that touchdown in da game last night?

Person 2: Yeaa mann, he was a straight beast!


Person 1: I got a 100% on my test last hour
Mann, straight beast mode on ur ass!
by borichevere October 16, 2008
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To be in a state of adrenaline, usually refers to someone wh is doing something ver well currently.
When Gio was fucking jasmin softly she yelled out "beast mode!"
by Tawny May 10, 2003
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When you pop adderall pills before going out for a long night of rowdy drinking
Thies went beast mode last night and was the life of tha party
by lechaz stevens February 5, 2010
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defining going crazy, screaming, or other crazy behavior
"i was just walking along, and this dude comes by and starts beating me and going beast!" ("beast" like going beast, is another way to say beast mode)
by dadefiner December 20, 2008
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when you get incredibly crunk while doing something you like such as lifting weights.
when i benched 315 i was incredibly crunk and was going into beast mode.
by Andy Merline December 31, 2004
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When doing any task, assignment, things with your women ect. Saying you will BEAST MODE something means to do it very well.

Made popular at RHS by John D. and Steve V.
EX. 1
John" yo did you hear we have a test in Mr. Trouts class today?"

Steve" hell yeah Im gonna Beast Mode that shit!"

EX.2
Steve"Did you hit that?"

John"I went Beast Mode on that bitch!"
by Steve Varner April 2, 2008
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