A fork of Rural Dictionary
A sex act where a woman (or man) eats a peanut butter cup right before performing pre coital fellatio on their sexual partner who is allergic to peanuts. This causes the mans member to swell to godly proportions he then inserts his grotesquely swollen Johnson into the woman's vagina or anus (or mans anus) causing other worldly pleasure for the woman (or man).
yooo girl your boys allergic to peanuts you gotta try some of that peanut butter cup cock !