1. a large floating mass of shit, detached from the anus, and floating adrift in the toilet.
2. When your turd is sufficiently buoyant to expose a small portion of itself above the surface of the water, leaving the rest of the turd below the surface.
The slang name of Melvindale, Michigan, U.S.A. A name derived from an underground newspaper called "The Duckburg Times" that supposedly circulated there in the 1960's (?)
A douchebag who hides the majority of his/her douchebaginess under the surface. Less than 10% of his/her douchebaginess is showing at any time, but much more lies beneath.