origin: [1835-1845] American
A card game: played only with a "short pack" of cards numbered 9 or higher, each hand is referred to as a "trick", and you can get a chance to "trump" someone -- that is a suit deemed higher than other suits, with Jack becoming the highest (as opposed to Aces), such as Jack of Diamonds being higher would beat out Jack of Hearts despite being technically the same rank. In fact, a 9 of Diamonds would trump an Ace of Hearts under these conditions; the suit has more power than the rank.
The exact origin of this game is lost to the annals of time, hotly debated to have come from France (Ruff) or Germany (Juckerspiel) or England, still others say it's from Spanish Triomphe, modernized in America during Napoleon's time, and possibly popularized by the Pennsylvania Dutch or through Louisiana steamboats. Euchre's 1800-1900's popularity waned with the onset of Bridge, Spades, and Hearts. However, the Internet has brought a comeback with online gambling options; the game euchre is quick with both luck and skill being factors, giving both the novice & the professional an advantage!
To prevent someone from winning at the card game of the same name -- by blocking an opponents' hand (or tricks) -- or a metaphor thereof; therefore "euchre", "to euchre", "euchred", and "euchring" can also mean to scheme, trick, or plan (can imply even cheating) one's way into or out of something.
Such as: The boy euchred his sibling out of another slice of pizza, by eating his own quickly, then grabbing the very last one.
There's a Donald Trump joke in here somewhere;
perhaps something about a celebrity euchring his way into a presidential candidate?!