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Pronounced like molasses (muh-las-iz), it is someone who has a small or below average sized ass. It isn't a medical diagnosis, it is simply the fact that someone has a small ass. It can be used as a name to call someone with a small ass, like a nickname, or it can be used to describe the person's ass directly. When figuring out if someone has smallasses, you only take the size of the butt cheeks into account. Quality and color of the ass are not relevant, nor is the gender of the person. You don't need to see their bare ass cheeks to make the decision that they have smallasses either. Simply giving them a friendly grope can help you determine. Typically, if you can fit most of one of your hands around one of their butt cheeks, that is a good sign of smallasses.
Hey, smallasses! Get over here!

I walked past Tim today on the way to close and I noticed he had smallasses.
by Jaremo July 12, 2012
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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The type of ass usually found on small petite girls. Somewhat preferred to big ripples asses of big women. Small asses are refereed to as "cute asses."
by ButtsexMcGee December 29, 2011
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