Top Definition
A deep rooted zit that doesn't quite come to the surface. Often is correlated with a throbbing pain.
The Mounder on my butt prevented me from sitting down.
by BigSexyJoe January 03, 2010
People that obsessed with piling things up on a large scale. Specifically dirt or debris.
Ben: While are their so many piles of dirt on that jobsite.

Bill: Because the contractor building the road likes to move the dirt around several times before installing it. They sure are good mounders.
by JYP February 03, 2010
When an older woman with sagging breasts forces them together in an under-sized bra to gain attain the illusion of perkiness or false cleavage. The result is a singular mound in the center of her chest while still being able to see the ill fitting bra.
Phil: Aww man. Look at that old lady's mounder.
Sam: Oh no. Well u can't motor boat that. But you can flounder a mounder.
by PhilNGood September 12, 2012

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