I'll be back

This is a line from The Terminator that became popular a little while after the movie was released. It was said by The Terminator (played by Arnold Schwarzenegger).

Terminator: I'll be back.
Cop at desk: *Stares*
*Terminator drives into the police station with a car and kills the cop*

Here's Johnny!

A line from the horror movie "The Shining". It became so popular everybody started using it. It is said by the actor Jack Nicholson.

Guy 1: I heard someone knocking on the door.
*Opens door*
Guy 2: Here's Johnny!
Guy 1: Fuck you asshole!