1. To "choke"
2. To fail to accomplish an important goal (such as obtaining an NBA title on a team that has three great players on it like the Miami Heat)
Guy #1: Dude don't LeBron on your essay!
Guy #2: Okay, I'll try my best!
Guy #1: Did you finish your science project?
Guy #2: Nah, I totally LeBronned it.
Someone that hates Frodo
Someone jealous of Kobe Bryant
I hate Frodo!, Damn you Lebron
Kobe Bryant aint got shit on me, Damn you Lebron
I love Manchester United (5 minutes later) I love Chelsea, Damn you Lebron