oppo

American  

[op-oh] / ˈɒp oʊ /

noun

Informal.

1. Also oppo research opposition research.

   She claims she never ordered oppo on the candidates.

2. an opponent or opponents; the opposition.

   It's essential to get to know your oppo.

3. opposite.

   I don’t know why she told you that when I really said just the oppo.

   In this context, "sad" is the oppo of "fortunate."

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verb phrase

1. go oppo to hit the ball uncharacteristically into the opposite field, which for a right-handed batter means hitting the ball into right field and for a left-handed batter means hitting the ball into left field.

   The infield was expecting a shot between first and second, but the left-handed Lomak went oppo and drove one right through the hole near third base.

Etymology

Origin of oppo

First recorded in 1990–95; by shortening

Example Sentences

I won’t quote the clips suddenly flooding social media, the apparent result of someone’s late and incompetent oppo research, of his saying things that betray to my ear an obvious animus.

From The Wall Street Journal • Oct. 30, 2025

But instead we must cite Webb, like Freeman a left-handed hitter who specialized in going oppo.

From Los Angeles Times • Aug. 28, 2023

Here's Jarred Kelenic's oppo homer …. pretty swing on the 0-2 pitch.

From Seattle Times • Mar. 1, 2023

The "oppo dump" was followed by Navarro's bizarre op-ed urging the public to respond to Fauci's advice with "skepticism and caution."

From Salon • Jul. 24, 2020

He had the presidential race in the bag, it seemed, until oppo research revealed he had a secret daughter.

From Slate