Osterize, (verb) an event in which a participant's head is implanted between a couch/bed cushion after strenuous sexual intercourse. This is usually performed from a doggy style position; however, it is possible to perform an inverted osterize utilizing a missionary position. The term osterize became popular circa 2006 and originated from the ostrich-like features of the recipient after being osterized.
Ostriker, (noun) an individual who osterizes.
Ostrikee, (noun) an individual who is osterized.
Joe osterized Jane leaving her head wedged in the couch and legs in the air. Joe is an ostriker.