2. A line in cricket, when the ball pitches usually on a length, just outside the batsmans off-stump. It is such a good line that it leaves the batsman unsure of whether or not to play a shot, and usually results in either an edge, a play-and-a-miss or some other form of comedy cricket.
3. A dark alleyway.
4. A womans anus. Do you dare venture into the Corridor of Uncertainty?
Fletcher: "If you keep putting the ball into the Corridor of Uncertainty, you'll get an edge for a wicket eventually."
Harmison: "OK, but what if I just bowl at second slip?"
Paul: "Let's go this way. It's a short cut."
Mike: "No, I can't see down there - it's a Corridor of Uncertainty."
James: "Let's have sex!"
Milly: "We can't, it's my time of the month!"
James: "No worries, I'll just put it in the Corridor of Uncertainty."