When a person is bad at everything and increasingly stupid the you assume that he/she eats crayons for enjoyment.
Yesterday Cody started yelling at me for stealing his phone when it was in his hand the whole time, and i thought to myself: He is one crayon eating motherfucker.
In call of Duty Modern Warfare 2, the Fat Motherfucker has been named by it's inventor Valmer, for the "Juggernuts", the description was called upon the "Juggernuts" because of the amount of clothes they wear which make called by the name, Fat Motherfuckers.
Player # 1: Hey, where is the Fat Motherfucker?
Player # 2: He's hereee!, kill 'em Fat Motherfuckers
Player # 3: I just got raped by one of them, Fuck 'em
Player # 1: Wooohoo, we fucked 'em Motherfuckers ;)