when the guy is having anal sex and she hasn't cleaned her ass and he starts scooping it out with his dick and makes her eat the brown moon like blue moon ice cream
The girl ate the brown moon.
by Jenny Frank October 21, 2009
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The act of shitting twice in one day.
Person 1: that happens once in a brown moon.

Person 2: Dude you must shit a ton!
by Young bookie July 26, 2013
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Full moon in November, coinciding with brown leaves fell from the trees and grass starting to brown
Kevin: Look, there's a brown moon through the window!

Phil: What you're talking about? The moon isn't brown.

Kevin: The name "brown moon" is given to the full moon that occurs every November.

Phil: Really?

Kevin: Yeah, November is about brown turkeys, brown leaves, brown grass, and why not the moon too?
by cosmic user January 24, 2020
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