LeBron 

(verb, to LeBron, LeBronning, LeBronned) To betray, dishonor. To have no regard for anyone but one's self. To basically be the lowest form of human life possible.

Jerry Jones: Art, are you seriously gonna move the Browns to Baltimore?

Art Modell: Heck yeah.

Jerry Jones: Dude, you are so LeBronning them.

LeBron by Callosum July 10, 2010

LeBron 

to not finish

Was with my main squeeze but was so wasted I had to LeBron her

LeBron by AndyBorowitz June 14, 2011

LeBron 

To back stab your home on national television.

Damn that was cold what he did to Cleveland, he really pulled a LeBron.

LeBron by Frozen salsa July 10, 2010

Lebron 

Defecation is the final act of digestion by which organisms eliminate solid, semisolid or liquid waste material (feces) from the digestive tract via the anus.

After my morning cup of coffee I usually take a lebron.

Lebron by Akroncavsfan July 10, 2010

LeBron 

In Manderin Chinese LeBron has been known to mean selfish prick and/or bastard.

Sean: Hey Matt pass the ball!

Matt: No

Sean: Dude you're being a total LeBron.

LeBron by LeBronhater23 April 24, 2010

Lebron 

The act of being a ball hog the ENTIRE game but yet still being able to keep the score or lead close..until the final minutes where you choke and blow the game if and ONLY IF you are playing a good team

Kendell dominated the entire game but he pulled a Lebron and we lost the championship game.

Lebron by Frank W R January 25, 2009

lebron 

to fail to execute at a critical juncture in an athletic event.

Boy, Lebron James really lebroned that potential game winning lay-up last night.

lebron by Harry Stanfeld May 1, 2008