The Peanut Butter Falcon is a sexual act that consists of a partner squatting over the mouth of the other partner and simultaneously pooping in their partners mouth while flapping their arms in rapid succession and violently screeching.

When a woman lays on her back, and someone defecates between her breasts, and proceed to squish them together. When you pull it apart, the feces will resemble wings, thus you have a peanut butter falcon.