Top Definition
A person (male) whos is heavily bearded and generally cool
Fluff dog is the coolest guy I know, his beard is awesome
by Chris Milne August 22, 2006
A hot dog bun, which is prepared with peanut butter and marshmallow fluff and the eaten.
motherfucking bread was bad but we had some hot dog buns so I made me a fluff dog.
by worderwood March 15, 2015
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