button your lip

Keep it secret

Button your lip means to stop talking or keep quiet, especially when you're about to say something you shouldn't.

The image is of fastening the mouth shut like buttoning a garment closed.

Often used as a direct command: Button your lip before you get us both in trouble.

Also appears as button it or button up.

Related

quiet · mum · not a word · zip it · zip your lip · sealed · keep mum · whisper · tongue · lips sealed · muzzle · keep quiet · say nothing · hold your tongue · gag · clam up · shut up · discreet

Categories
Opposites
verbal expression/silence

button your lipspeak up

Talk louder or opine

speak your mind · open your mouth · let it out · speak out · sound off

discretion/indiscretion

button your lipspill the beans

Reveal confidential information

let the cat out of the bag · blab · tell all · kiss and tell · give the game away

Family

button, buttons, buttoned, buttoning, buttonhole, lipped

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G