Imagine if you will a truck full of grape koolaid and a watermelon truck crashing head on into one another on the freeway. The police on scene call Tyrone, a Churches Chicken employee to tell him his uncle DeSeaun has died causing him to drop his dew-rag in the deep fryer creating a fire that burns the establishment to the ground.. That my friend is a niggatrocity
Niggabros often fully embrace typical Caucasian-bro culture, but use their blackness to introduce and embolden their white bro friends to use the word "nigga" colloquially with confidence (at least while around niggabros).
Niggabros usually snowboard, posses the capacity to speak fluent Ebonics at anytime, and generally listen to some form of hardcore gangster rap on the low.
Steve (white): Yo what up my nigga!
Martin (white): Hey dude whats goin' on?
Steve (white): Aw nutthin my nigga just picked up that new Asher Roth joint, shit is hot!
Martin (white): Dude why are you saying "nigga" so much all the sudden.
Steve (white): Aw shit dude, my bad, I was hangin' around my niggabro Edmund all day yesterday!
A combination of the word nigga and Transformers Megatron. This portrays the black male who appears real and genuine on the outside, but really, is a bastard who doesn't care for anyone else and is heartless and soulless, rather like a robot.
Girl: "Why's he being like this?! He's so mean, so cold to me, I don't get it"
Girls' friend: "Because he's punk arse bitch. Damn Nigatron"