A prank phone call where the prankster gets a jar of Crisco and inserts his penis into it. He then holds the phone up to it so the person on the other end hears the phfffk noise made. Often used to pick up on hot bitches.
Phone: Ring Ring Ring
Prankster: Phfffk Phffk Phffk
Prankee: What the fuck? You are a totally hot mother fucker. Would you like to go out some time?
Prankster: Hell Yeah