The act of pleasuring a woman with the tip(s) of your mustache.
Jim: Dude I've never been that drunk before!
Jake: Do you even remember what happened?
Jim: Hell no bro, I totally killed 3 6'ers in a shotgun battle.
Jake: All you could talk about was the monster whisker pussying you preformed on a female individual..
Jim: What the fuck is whisker pussying?!
Jake: Ask your sister..