What is Obama's Grandma?
1.
A person who is sacrificed by an other person for personal gain; usually the sacrificed is undeserving or at least vulnerable. A person to 
Alternate use, call the sacrificed the 
"Carl talked to the boss and made me Obama's grandma."
Alternate use: "My boss just chewed me out because I guess I'm Carl's grandma."
See 
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1. 
Air America radio legend and a folk hero of South Florida.
Did you hear Randi Rhodes today, when she ripped Bush to hell, she rocks!
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