A conversation ender. Used at the end of a statement when a person in the middle of a conversation wishes to stop talking about it immediately.
Coined from the TV show
LOST, where at the end of every episode, the
word "
LOST" flashes across the screen, ending the episode very abruptly or on a cliffhanger.
Guy 1: "So I totally hooked up with that hot blonde last
night at the party. I wish I had gotten her
number."
Guy 2: "Dude, that was my cousin.
LOST."