refers to playing the campaign mode of a video game (such as "Call of Duty" or "Halo") strictly to exclude someone who seeks to play online with others.
Can be expanded to describe any form of exclusion.
Richard: You guys are playing campaign mode just to exclude me!
Mike: No we're not!
Mike (in a private chat with another player): We totally are.
An additional derogatory title given for Donald J Trump, the 45th President of the United States of America, by his detractors. The title alludes to his lack of leadership and his obsession with campaigning for his own reelection. It is intended as a parody on the term "Commander-In-Chief."
Donald Trump, when not golfing or tweeting on the shitter, loves to play the role of Campaigner-In-Chief
A dirty political campaign run against your opponent, using exaggerations, lies, and/or quotes taken out of context, in an attempt to scare or disgust the public against that candidate.
See also: the 2012 Obama re-election campaign against Mitt Romney
The 2012 presidential election used a smear campaign against Romney, implying that he didn't pay taxes, had a war on women, went around with his dog tied to the car, was a high school bully, hated 47% of the country, and was nothing but a rich greedy douche. The Obama administration, Mother Jones and some members of the media used dirty tactics. Too bad, the economy probably would be much better if he were president, but we'll never know now.
The state of a political campaign worker or volunteer's car in which the entire trunk, back seat, or other location is full of campaign literature, yard signs, buttons and other campaign related material.
Sarah's Prius suffered from campaign car syndrome for weeks after Obama was elected until she finally removed the last box of lit.