A homefuck is the product of an incestuous relationship, normally that practiced by 'redneck' siblings the world over. Often used to berate and abuse someone who shows a distinct lack of intelligence or common sense.
When your dumb as hell friend does an action that is so incredibly stupid (even by their standards) and ends up getting completely fucked up in the process.
That smell when you walk into a room full of homosexual men. Most likely the smell from recent anal sex.
I walked into party and the homofunk was unbearable.
The homofunk on that guy was strong.
I caught the whiff of homofunk, but it turned out to be sweaty clothes form the locker room.