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1.
The ultimate insult, also known to induce high amounts of confusion
Yeah, well, your just a...a...a.. a big purple bitch!
by Sulli December 05, 2005
 
2.
A person who wears a purple article of clothing, (usually a shirt), way too much
Bob: That guy has worn a purple shirt to work everyday this week.

Bill: I know. He is such a Purple Bitch.

(The original Purple Bitches are Barny and Justin T.)
by Grandpa Sussie July 10, 2008