Having sex with a girl that has a hairy vagina.
Man, we already got with all the hot girls around here. Dude we could always go shrubbin.

When going shrubbin, one should always scout out the pubic region for wildlife including crabs, scabies, and even ring-tailed lemurs.
by Jason Bond May 7, 2007
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When one begins to smoke weed before they go to smoke weed.
"Hey man, what are you doing? We won't be at the party til 9!"
"I told him bro, but he's Shrubbin' the gun!"
by MilkyPilky February 7, 2013
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