A portmanteau formed using the first two letters of the words: FAce DOwn ASs UP and describes the way a person (frequently the person that will be the passive or receiver in anal sex) has positioned their body while awaiting a pending sexual encounter.
Craig was in his bedroom fadoasup awaiting the arrival of Larry, Todd, Emile, and Jarjar who would no doubt desecrate his anus.
by H.H. McGillicuddy February 03, 2023