The simple fact is the world is widely inhabited by haters, and all that most hater like to do is either bitch or snitch so this is a phrase to basically tell all the haters to fuck off
Hater: Oh youre gettin money! U must be doin somethin illegal. I'm calling the cops if you don't give me some!

Dude doin his own thing: Fuck you man! I swear all you haters are alike, If You Aint Bitchin, You're Snitchin!
by Fontaine_OGrady May 17, 2013
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