1. A man who has an incesteous relationship with or sexual fantasies about his uncle. 2. A bagpipe playing member of the Coast Guard Reserves. 3. A beer making school teacher. 4. A man who studies geneology so he can learn about all the uncles he will never have a chance to fuck. 5. A bottom to his uncle's top.
A person who has sex with a pillow. Generally these people are virgin males who can't "score" with an actual woman. So, he must make do with his pillow.
Gah...I can't believe I'm thirty years old and still a pillowfucker.