Acronym for "[Asshole] Best Friend Forever".\n\nA variation of a [friend] that sends abusive text messages, incessantly taunts, and acts like an all around [douche] to another friend, all in good fun.\n> (Text Received from ABFF) Hey bitch! Why don't you grab your knotted dick and feed it to your master, you grobsmacking, douchehuffing, butt battering, clit punching cock champion? Lunch in a little bit?\n