1 I could have won, but I goofed up.

2 The restaurant totally goofed up our reservations.

3 He was pretty goofed up that night.

4 Don't goof up. This plan is very important.

5 Don't goof up. This project is too importance.

6 Don't goof up. This project is too important.

7 Don't goof up his computer system!

8 People goof up and fail — a website that admits to its shortcomings is one that's built by people.

9 It is best to acquaint yourself with the etiquette related to various wedding traditions so there is no chance of a goof up.