The Real Meaning:
A YTMND fad that does NOT come from "Hate It or Love It", but really from the classic NES game "Punch Out" (might be called Mike Tyson's Punch Out).
Nigga stole my bike features an animated character, who's name is Nigga. As seen in many YTMND sites, Nigga is caught stealing more than bikes.
There is many icons on the internet of this as well.