Meaning the show/event has ended, this comes from the announcements that used to be made at the end of musician Elvis's concerts in order to get fans to leave the arena. Now we use this term anytime an event has ended.

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

The words that appear when you kill all of the elvis impersonators in GTA2.

When a guy's member has exited his boxer shorts by sneaking out of the flap during the night.