Top Definition
Fiercely tireless worker on Barack Obama's campaign, especially when present at democratic party caucus meetings. The feminine is obaminatrix, but is this usage is rare.

Also used of the candidate himself.
It was clear within minutes of the caucus meeting start that the obaminators were in the majority.

The Obaminator has gathered financial support from more than 1 million private donors.
by A. Gene Davis February 29, 2008

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