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1. verb To make a blunder or mistake. Boy, I really goofed on that math problem. How did I get a negative number as my answer?
2. verb To use drugs recreationally. I don't think you realize how dangerous it is to goof like you're doing.
3. verb To lose control of one's body (as by slobbering) due to heroin usage. He's goofing now—how much smack did you give him?
4. noun A blunder or mistake. Boy, I really made a goof on that math problem. How did I get a negative number as my answer?
5. noun One who is prone to silly behavior. Hey, you goofs in the back row need to calm down and be quiet!
1. verb To waste time with someone or something. Quit goofing off and get to work on your book report already, Scotty!
2. noun One who is apt to waste time and fool around. The phrase is usually hyphenated in this usage. Hey, you goof-offs in the back row need to calm down and be quiet!
goof on (someone or something)
To mock or tease someone. Sarah's a very sensitive kid, so don't goof on her.
to act silly. The kids were all goofing around, waiting for the bus. Stop goofing around!
to waste time. John is always goofing off. Quit goofing off and get to work!
goof on someone
Inf. to tease or kid someone. I don't believe you. I think you're just goofing on me.
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?
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.
1. Inf. messed up; out of order. All my papers are goofed up. Everything on my desk is goofed. Who's been here?
2. Inf. confused; distraught. I'm sort of goofed up today. I think I'm coming down with something. I was up too late last night, and now I'm all goofed up.
See also: goof
Make fun of, mock, as in He was always goofing on his little brother. [Slang; mid-1900s]
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]
To act foolishly, playfully, or without a clear sense of purpose: The students who goofed around all semester failed the course.
To waste time, especially by acting foolishly or frivolously: The students spent their free time goofing off instead of working on the project.
1. To make a mistake, especially out of confusion or ignorance: You really goofed up by not telling your parents you were leaving. I didn't follow the instructions for the job carefully, so I goofed up.
2. To cause someone or something to blunder: The directions to the park were confusing and they goofed me up. You're not alone in getting lost; that fork in the road goofs up everybody.
3. To perform something badly; blunder in executing something: You really goofed up the spelling section of the test. The band didn't rehearse enough before the concert and really goofed the march up.
1. n. a foolish oaf; a goofy person. Don’t be a goof. Get with it.
2. in. to use heroin or some other addictive drugs without intending to become addicted; to play around (with heroin). (Drugs.) Gert spent the first few years just goofing.
3. in. to scratch, nod, and slobber after an injection of heroin. (Drugs.) She has been goofing for an hour.
4. and goof up in. to make a blunder. This time, you goofed. I’m afraid I goofed up.
5. n. a blunder; an error. This goof is yours, not mine.
1. and goof around in. to waste time. You guys are goofing off again! Get busy. Stop goofing around.
2. n. a time-waster; a jerk. (Usually goof-off.) I’m no goof-off, but I am no scholar either.
See goof off
goof on someone
in. to play a prank on someone; to involve someone in a deception. Hey, don’t goof on me. I’m your buddy!
goof something up
tv. to mess something up. I hope I don’t goof up the report again.
1. mod. messed up; out of order. All my papers are goofed up.
2. mod. confused; distraught. I was up too late last night, and now I’m all goofed up.
3. mod. high on drugs. Bob’s a little goofed up after partying too much.
See goofed up
See also: goof
1. mod. foolproof; not subject to misuse. This scheme is not goof-proof, but it’s pretty sound.
2. tv. to make something foolproof; to take action to see that something cannot be misused. See if this can be goof-proofed by Monday evening.