Wiktionary
goof-up
n. (context slang English) A mistake or problem.
Usage examples of "goof-up".
I rather suspect that they were engaging in a frank and thorough confession of their errors, goof-ups and blunders, as this has been a feature of every FCIC meeting since their legendary Memphis beer-bust of 1986.
Decorations, promotions, goof-ups, Fitzsimmons Hospital records when they dug the shrapnel out of his back.