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1.
v. To open an argument with absurdly excessive concessions to one’s opponents.
Hey, when you go ask for a higher grade, don't obamanate like you did the last time, and confess that you wrote the paper at the last minute while drunk.
by lkw May 29, 2013
 
2.
Obamanate (verb): to give up easily and without a fight, often used in cases of almost certain victory.
E.g. John is such an idiot, that girl was all over him and then out of the blue he obamanated and left.
by ellith December 07, 2010