- A command to be quiet or stop talking immediately.
- Can also mean to keep a secret.
Explanation
Origin
- A vivid metaphor comparing the closing of one's mouth to fastening a zipper ('zip').
- Popularized in the mid-20th century. The visual of sealing the lips shut emphasizes the command for silence or secrecy.
Synonyms & Related Expressions
Alternatives
Slang/Informal (Commands for silence):
- Shut it / Shut your trap / Shut your face (Rude)
- Pipe down
- Can it (Informal/Rude)
- Put a sock in it (UK/Aus Rude)
- Knock it off (Stop making noise/disturbance)
- Shush / Shhh
Vulgar/Emphatic (Commands for silence):
- Shut the fuck up / STFU (Online) (Extremely Rude)
Milder/More Polite (Requests for silence):
- Quiet, please.
- Could we keep the noise down?
- I need some quiet, please.
For Secrecy:
- Keep this to yourself / between us.
- Don't breathe a word.
- Mum's the word (Dated).
Situational Appropriateness
- Informal and often considered rude or abrupt, especially when used as a direct command between adults or to a superior.
- More acceptable (though still potentially harsh) between close peers, siblings, or from an adult to a misbehaving child.
- Use with caution; more polite alternatives like Could you please be quiet? are usually better.
Misunderstanding Warnings
- The meaning (be quiet/keep secret) is usually clear from context.
- The main point for learners is understanding its level of directness and potential rudeness.
Examples
- (Command for silence): Zip your lip, the movie is starting!
- (Command for silence): The teacher told the noisy students to zip their lips.
- (Command for secrecy): Don't tell anyone about the surprise party – zip your lip!
Dialogue
Sibling 1: (Loudly) I can't believe Dad bought Mom that ugly necklace for her...
Sibling 2: (Interrupting urgently) Dude! Zip your lip! She's right in the next room!
Sibling 1: Oh! Oops. (Goes quiet)
Social Media Examples
- (Rarely typed as a direct command, more often in reported speech or ironically)
- Told my friend to zip his lip before he spoiled the season finale for me! #NoSpoilers #Shhh
- Wish I could just tell my anxiety to zip its lip sometimes. 🤐 #MentalHealth #AnxietyProblems
Response Patterns
- Compliance: Becoming quiet, nodding.
- Annoyance/Resentment: A glare, rolling eyes, muttering under breath. Alright, alright!, Jeez!
- Inquiry (if the reason isn't clear): Why? What's up?
- Agreement (for secrets): Okay, my lips are sealed., Got it.
Common Follow-up Questions/Actions
- The person told to zip their lip usually stops talking or confirms they will keep the secret.
- The person who issued the command might then explain the reason for silence (I need to concentrate) or emphasize the secrecy (Seriously, don't tell anyone).
Conversation Starter
- No. It's a command intended to stop conversation or enforce silence/secrecy.
Intonation
- Usually said sharply and authoritatively as a command.
- Strong stress on Zip.
- ZIP your lip!
- Can be said in a hushed, urgent tone when warning someone to be quiet or keep a secret.
Generation Differences
- Widely understood. Might be perceived as slightly old-fashioned by some younger speakers, but the meaning is clear. Usage frequency might be higher among older generations or in specific contexts like parenting.
Regional Variations
- Common in most English-speaking regions.