mildewd (alt. mildude) [mil-dyüd] noun, informal: 1. a man, formerly fastidious in dress and/or manner, who has now allowed himself to deteriorate with advancing age. 2. clothing that would only be worn by such an individual.  (plural: mildewds)

Some examples:

• “Man, get a haircut.  You’re such a mildewd.”
• “That shirt was mildewd 20 years ago.”
• “I don’t want to go to Shifty McNasty’s, it’s a bar for mildewds.”
• “The mildewd, no longer fashionably late, received a scowl from the prestigious crowd.”

I hereby submit this word to the English language.  If you have other, more interesting uses, of the word – please feel free to leave them in a comment.

Special thanks to SarZ for causing me to think of this.