When you get fired on a job site.
The safety man came around and i wasn't tied off. So I got run off.
The leftover urine that drips onto the pants or shorts after zipping up, giving the impression that one has pissed himself, or the water from a faucet that somehow ends up on said parts. Runoff is commonly hidden or removed by wearing long shirts or utilizing the hand-dryer while no one is around.
Bill: Oh hey man looks like you just pissed your pants!
Sven: F*** runoff!
To make a photocopy of something
Can you run off a couple of copies of that worksheet?
when ejaculation has occured past it's maximum point
Why is it still cumming like that?
I don't know. It's run off.
fresh cum trickling down an object
Oh my, I've got run off on my back!