zip up

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zip up

1. To fasten two pieces of fabric together using a zipper, especially on a piece of clothing. A noun or pronoun can be used between "zip" and "up." Make sure you zip up the entrance to the tent when you leave, or the mosquitoes will get in! I zipped up my fur coat and headed out into the snowstorm.
2. slang To stop talking; to shut up. Usually used as an imperative. In this usage, "it," "your mouth," or "your lip(s)" is always used before or after "up." A: "But Mom, I don't want to go!" B: "Zip your mouth up, Charlie! You're going to math camp, and that's final!" All right, everyone, zip up your lips! I don't want to hear another sound until the presentation is over.
See also: up, zip

zip something up

 
1. to close a zipper. You should zip that zipper up. You should zip up that zipper.
2. to close a garment by zipping a zipper closed. You had better zip your jacket up. You had better zip up your jacket.
3. Sl. to close one's mouth. (Fig. on {2}.) Zip your mouth up, Fred! Zip up your mouth, Fred.
See also: up, zip