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.
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.