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 toclose to Vincent's flabnasty mom. She'll chew your arm off! Flabnasty!"
"Ordinarily, he is Fewis Loulds, but when the Fat Signal shines in the sky, he becomes; The Flabbinator! Protecting the city from criminals and salads alike!"