zip it/zip your lip : American English : spoken : informal
.. used to tell someone not to say anything about something, or to tell them to be quiet e.g
You'd better zip your lip or you'll be in trouble
zip it/zip your lip : American English : spoken : informal
.. used to tell someone not to say anything about something, or to tell them to be quiet e.g
You'd better zip your lip or you'll be in trouble