The sometimes hairy bit inbetween your balls and arsehole
The guche trimming faries came and trimmed my guche hair overnight
by Taylor January 21, 2005
The piece of skin between your asshole and your nuttsack - at first seemingly useless, yet prevents a man from shitting on his own balls.
i've got a sore guche from riding my bicycle all day
by b4st4rd November 21, 2005