1. To fold or crease something so that it becomes smaller. In this usage, a noun or pronoun can be used between "fold" and "up." I folded up the newspaper and put it back on the rack.I have no idea how she folded up the paper and produced an origami crane!Hey, fold up that blanket if no one's using it.
2. To be able to be folded or bent into a smaller size or position. This bag folds up for storage, you know.A: "How did you fit that coat in your suitcase?" B: "Oh, it actually folds up really small."This silicone water bottle is pretty cool because it folds up when it's empty.
3. To stop doing business. Aw man, I can't believe that restaurant folded up—I really liked it.A: "Is Sarah still working for that software company?" B: "No, they folded up a few years ago. I think she's working for a pharmaceutical company now."That little shop is adorable, but I suspect it'll fold up sooner than later—there's just not enough foot traffic here.
4. To faint or pass out. I made it through the whole marathon but folded up as soon as I crossed the finish line.If you don't stay hydrated in this extreme heat, you're liable to fold up.After a full day at the amusement park, we were all ready to fold up—thankfully, our hotel was just a short walk away.
1.Lit. to double something over into its original folded position. Please fold the paper up when you are finished.Please fold up the paper.
2.Fig. to put an end to something; to close a money-losing enterprise. Mr. Jones was going broke, so he folded his business up.The producer decided to fold up the play early. It was losing money.
1. Fail, especially go out of business. For example, Three stores on Main Street have folded up.
2. Collapse, break down. For example, When she told him about the dog's death, she folded up. This idiom alludes to closing or bringing an object into more compact form. [Early 1900s]
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