zipping up

Verb

zip up (third-person singular simple present zips up, present participle zipping up, simple past and past participle zipped up)

1. (transitive) To close with a zip fastener.
   • Always check if you've zipped up your fly before you go out.
2. (idiomatic, intransitive, transitive) To close as if with a zip fastener, especially one's mouth; to stop talking.
   • I'll zip up my lip.
3. (transitive) To convert a computer file into a smaller package.