Action: Sexual activity. Hey, you get any action last night?
Beat: A lame situation. Man, this party is beat!
Dialogue: The conversations that you have with someone after you have known them FOREVER, and have absolutely NOTHING left to talk about. "Conversations" imply two way, thoughtful, communication. "Dialogue" could be spouted out by a parrot and be the same.
flashback: When the person you've flashed has flashed you back, presumably in the same method in which you flashed him/her. I was just screwing around when I flashed her--but I never expected a flashback!
Hero: Someone who gets a lot of OTHER people killed.
Montage: A video put on youtube showing off your "skills" on games. Usually people who make these vids just edit out all 300 other failed shots till they get the right one. Montagers also hate hitmarkers. Hate them.
Plot: What Twilight doesn’t have.
Screen Play: Someone engaged in thumbing around the screen of their phone. Hillary laughed uproariously as she was lost in screen play.