1. A Republican or conservatives who attempted to stop Donald Trump from obtaining the 2016 Republican party nomination for president;
2. A movement by some conservatives to oust Trump as the central figure of the Republican Party;
3. What Donald Trump call any person who does not agree with him or says anything negative about him;
Not to be confused with a “Never Trumpeter,” who is a person who often refuses to play the trumpet, making for awkward moments at band camp.