When you don't know how to spell euchre

Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy

1. normally used as another form of yucker. it is used to describe someone that is really foul, obnoxious, and annoying.
2. someone who does something that can be classfied as yook or yuck.
3. someone who does something that generally makes you want to swear at them.