1: to prove ones value ostentatiously

2: to only work ones hardest or give ones best effort when one wants to prove a point to someone. On other occasions minimal necessary effort is be given.
Steve was lebroning hardcore yesterday after George said his best work was average at best.

(derived from lebron james inconsistant NBA performances)
by Grass_Master February 12, 2011
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LeBron James the overrated NBA player who tosses powder in the air before every game. LeBroning is the act of powdering yourself. In most cases it involves powdering your butt/butt hole by tossing powder up there cause your anus feels inside out, and there is no easy way of getting powder up there. Also, it helps to eliminate the burning between your cheeks and thighs after a workout without compression shorts.
Excuse me I have to go LeBron my asshole

I just Lebroned my butt, and it feels so much better.

Please don't come in cause I am LeBroning myself, and it's not a pretty sight.
by Diabolical Hater November 9, 2009
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someone who quits on you when you really need them, then move on to something better
girl1: Girl I don't see how you stay calm after he lebron you like that.
girl2: It dont matter, i guess he was to good, sometimes you have to let them go.
by jayboomboom July 11, 2010
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a male model of the black, and very often gay, variety. the look of blue steel in front of the camera that garners a gay male model so much fame. a roomate who you're not quite sure if he will come outa the closet even though he has a fat crush on his other roomate smithers.
That black guy over there is way too into his looks; he's such a lebron.
by wardeezy May 26, 2006
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To leave a an individual or a group that is extremely faithful to you for no reason to be selfish, usually for a bigger or better group. The act of making someone or something do this as well.
The man decided to Lebron Allison because, Nana, Jessica, and Amy wanted to have a foursome, that bitch wasn't offering anything anyways.
by MastaPDC January 2, 2011
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Lebron just Lebroned the Lakers! The Brow is on his way!
by MDnouln March 16, 2021
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A big smelly black shit that weighs approximately 200 lbs. and resembles NBA small forward Lebron James.
- I just Lebroned.
- O-Unit chipped the porcelain when he dunked a Lebron.
by O-Unit January 3, 2005
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