1. An act of stupidity which costs you $35 million.
2. An accident involving someone shooting his or herself in the leg.
Derived from the name of soon-to-be-former NY Giants wide receiver, Plaxico Burress, and the "accident" of shooting himself in the leg in a night club which simultaneously put him in jail, ended his career, and nullified the rest of his contract.
Definition 1: When you shoot yourself in the thigh on accident, most cases occur in clubs.
Definition 2: When your dumb ass star super bow reciever gets locked up for 2 years because he shot himself.
Jane, a model, was afraid of getting mugged and beaten so she carried a knife at all times. Running for a cab, she had a plaxident and fell, slashing her cheeks.