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2.
To perform oral sex.
Driving down the Highway 401, the truckers could see that she was giving me some fine gamahuche.
by Jackal October 17, 2004
 
1.
v. to perform cunnilingus.
sodwit 1: Oh ..wommannnn..i need it so bad. Let me gamahuche down there, hawtthang?..
wommannnn(?): ewwwwwwwww!
by hytham_hammer July 06, 2005