Definition of "oppo" []

• A friend, associate or colleague. (noun)

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• "In 2009 Weiner planned to run but decided not to after Bloomberg's people said they would spend over $100 million on the campaign, 20 percent of which was to be devoted to what is called "oppo research" on his rivals."
• "While his oppo is shaking his head with an unsaid Shutupshutupshutup."
• "Lurkers and trolls can hide their identity, or have none at all, as they dish "oppo" -- or flat lies -- with impunity."