Define The Door Is To Your Left Meaning

The Door Is To Your Left
The polite way of saying 'gtfo.'

Person A: omgg hi gaizu wuu2????
Person B: ...the door is to your left.

Person A: I totally just bought Justin Bieber's new album. Can't wait to play it!
Person B: The door is to your left.

Person A: fake n gay
Person B: the door is to your left.
By Melba