The act of intentionally revealing plot details and twists to Game Of Thrones to someone who has not yet seen that episode in the series for the purposes of ruining their viewing experience/lives.
Person 1: Dude, Eddard Stark got beheaded!
Person 2: Fuck! I haven't seen that episode yet!?!
Person 1: I know, I totally just throne fucked you!
Person 2: Fuck! I haven't seen that episode yet!?!
Person 1: I know, I totally just throne fucked you!
by Hamdizzle April 12, 2015