The Collaborative International Dictionary
Warp speed \Warp speed\ [From science fiction tales of spaceship drives operating by warping the shape of space or of time.] literally, a speed faster than the speed of light; fig., an extremely high speed, usually the fastest possible; -- used only in the figurative sense except in fiction.
Wiktionary
n. 1 (context science fiction English) A hypothetical, extremely rapid, speed, resulting from entering a separate dimension, termed hyperspace; much faster than the speed of light. 2 (context by extension informal English) Any very fast speed.
Usage examples of "warp speed".
In other words, it took about thirty-three times more power to increase our warp speed by a factor of two.
At warp speed seventy as we were beginning to call it, we just had a month to kill.
Either way it was going to take a buttload of energy to overtake even warp speed ninety.