That's not the secret KNOCK.
The Big Bang Theory Season 1, Episode 16
They'll KNOCK your teeth out.
Game of Thrones Season 3, Episode 3
-(KNOCK ON DOOR)
The Big Bang Theory Season 10, Episode 7
KNOCK down the statues and the pillars,
Game of Thrones Season 5, Episode 7
Well, I have,
and it will KNOCK your socks off.
The Big Bang Theory Season 2, Episode 22