Definition of Slip Up (idiomatic) To err, falter; to make a mistake, especially a seemingly small error.
How to use Slip Up in a Sentence?
- 1. Sorley, was to slip up afther mass to take his dinner wid them, and to keep Misther Mc. 🔊
- 2. Sally knew how deserted the bar was, how easy it would be for a man to slip up the stairs without being seen. 🔊
- 3. She would slip up behind a person who was deep in dreams and musings and fetch a war-whoop that would jump that person out of his clothes. 🔊
- 4. At any rate, after supper she would slip up to the wardrobe and, with a bent hairpin, make investigations. 🔊
- 5. But since you've put fifteen thousand into it already I guess you won't slip up on the last five thousand. 🔊
- 6. And I'm just as sure he never saw that bit of pasteboard, for Lew would never slip up that way. 🔊
- 7. I also had the feeling that in this particular city, in the darkness I might be submarined by a city human U-boat, which would slip up behind me. 🔊