Top definition
1. The musty scent of a man after exerting himself physically.

2. The pheromone laced aroma that sometimes emanates from a man's clammy scrotum during the warm summer months.

3. The dank stench of an unclean adult male human.
"After vigorously scratching my sac, I realized that my hand had been inadvertently coated in man musk."
by Deezdefz August 26, 2009
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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