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1. Exclamation used to indicate disgust in one's excessively lazy lifestyle.

2. Adjective used to describe a person who is habitually excessive, particularly in relation to food and drink, but also in relation to drugs, lethargy, and general sloth.
"Don't get to close to Vincent's flabnasty mom. She'll chew your arm off! Flabnasty!"
by King Byron July 25, 2008
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