english
1
general::
Phrase(s): goof someone or something up Inf. to mess someone or something up; to ruin someone’s plans; to make something nonfunctional. • Who goofed this machine up? • Who goofed up the machine?
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Phrase(s): goof up (on something) Inf. to make an error with something; to blunder while doing something. • Please don’t goof up on this job. • If you goof up one more time, you’re finished.
McGrawhill's American Idioms And Phrasal Verbs
3
general::
Blunder, make a mistake, spoil. For example, I really goofed up and got all the dates wrong. This expression emerged in the military during World War II, along with the synonymous GOOF OFF. Quite often up is omitted, as in Sorry, I goofed. [Slang; c. 1940]
American Heritage Idioms