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A condition where a women has a flat buttocks. AKA flat ass. Common in European women. A person with this condition lacks junk in the trunk.
Heather was self consious about her ass because of the chronic Glutius Flatosis.
by DzNutz January 20, 2004
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Apr 28 Word of the Day
Literally everyone, ever. Including the writer of this definition.
by masokitsune January 17, 2019
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