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1.
The stretch of skin between the anus and the testicles. See also 'chode' or 'grendela'
Dan fell on the ice, did the splits, and tore his ganch.
by Garrett Wedeganch Nichols October 31, 2003
 
2.
1. A person who talks rubbish or talks too much
2. To talk rubbish or to talk too much
1. "He's a proper ganch that one"
2. "All he does is ganch. When's he gonna quit his ganching"
by Chatters March 14, 2005
 
3.
That fat part of a cat's belly that swings back and forth when it runs.
Holy cow that ganch is hitting the floor!
by Negligent April 07, 2005
 
4.
the freckles on calebs pussy
by Anonymous March 18, 2003