Slip-up used in a sentence

Slip-up in a sentence as a noun

""Probably, they are used to IE not working"Not sure who had the slip-up, but evil works both ways :P

This was the first time in several years that Apple wasn't using ATI GPUs at all, and people speculated that this change might be due to ATI's PR slip-up.

I think that the main slip-up was the use of the same account on BitcoinTalk to both promo SR and to post his personal Gmail account to try to hire Tor experts.

The sources aren't named, but it would be a pretty major, major slip-up to specifically claim to site NSA advisers if it were made up out of whole cloth.