"Marty McFly: Wait a minute, Doc, are you trying to tell me that my mother has got the hots for me?

Dr. Emmett Brown: Precisely.

Marty McFly: Woh. This is heavy!

Dr. Emmett Brown: There's that word again. "Heavy". Why are things so heavy in the future? Is there a problem with the earth's gravitational pull?"

 –Back to the future