Dude, getting my teeth cleaned is no longer as satisfying since my dentist replated the hottie dental girl with that guygienist. Having his fingers in my mouth is all wrong.
Guygina, an offhand term for the anus of the "bottom' or passive male partner involved in a homosexual relationship.
Mark thought Andy was totally hot, he watched the younger mans round buttocks as he served his customers at the lunch counter and quietly fantasized about inserting his finger into Andy's guygina.