Unch is the unit of measurement men use to boast about the size of their member. One unch is roughly 0.5 inches.
by King Ceri June 5, 2011
a colloquial, in-circle term used to allude to the action of ravenously attempting to please the female clitoris with tongue and teeth
OMG THAT UNCHING!
by FairyTail? May 20, 2013
by Chris McL February 5, 2007
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by wads October 2, 2003