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1.
Phrase used to assert one's authority and superiority.
I'm Dave Chappelle. You don't know who I am? I'm rich, bitch!
by Turb Unit March 01, 2004
 
2.
Exclamation uttered on the moment an individual realizes or re-iterates his or hers personal wealth to someone he or she wishes to humilliate.
"Hey, did you win the state lottety?" "Yeah! I'M RICH, BITCH!"
by sardaukar siet September 18, 2006