He slipped up from his seat and started around the table.
Because it isn't just a question of me slipping up, you know.
The computer had slipped up and there was an end to it.
It's hard to slip up on a man from behind like that.
But it's only a matter of time before they slip up.
It was open and no one could slip up on him without being seen.
Would he slip up and give us something that made sense?
It was the first time he'd slipped up that way.
Look, the computer records can slip up once in a while.
For another, you slipped up in too many ways, all of them wrong.