To hit the acceleration pedal (or, in the US, gas pedal) to such extremities that it is parallel to the floor of a car. i.e. Hit maximum speed as quickly as physically possible.
Pressing the gas pedal to the ground of the vehicle you are driving... mainley used in older vehicles, or Dodge's. Also can be used at the end of every sentence you say, just as a period would be.
Dude your stuck Floor it
Cops! Floor it
Slow down Floor it
Here comes Elton John Floor it
n. to drive recklessly and quickly like the (in)famous Boating School episodes from the popular Nicktoon Spongebob Squarepants: can also be compared to "drive it like you stole it" and "drive like a crazy mo-fo."
Mrs. Puff: Okay, now, what do you do next?
SpongeBob: Floor it?
Mrs. Puff: Yes-- no! No! Don't floor it!
SpongeBob: Floor it?!
Mrs. Puff: No, no, don't, don't floor it!
SpongeBob: Okay, floor it!
"Dude what's going on? Why are the cops chasing you?"
"Shut up and Floor It Like Spongebob!"
Da "flat as da FLOOR" most-south-eastern U.S. state where everyone cluelessly "FLOORS it" like it's da Utah salt-flats!
Seeing as how da Daytona 500 is held in Floor-it-duh, it's little wonder dat said "peninsula state" has so many highballin' motorists who love to use saidpancake-terrained principality as a huge racetrack!