Prior to receiving a blowjob, you part your pubic hair to look like a curly, wirey, mustache.  Then when a women places her lips on your penis, it appears as if she has a mustache
by Rob_0831 December 28, 2008
 Get the Guatamalan Mustachemug.
Get the Guatamalan Mustachemug.  Get the Guatamalan Mustachemug.
Get the Guatamalan Mustachemug.