The English Planet - Tenerife - Idiom: Button your lip. Meaning: If you button your lip, you keep quiet and don't speak. It is also used as a way of telling someone
Button Your Lip! Loose Talk Can Cost Lives - World War II Propaganda Poster Collection - Hennepin County Library Digital Collections
Somebody blabbed. Button your lip! – Works – Weisman Art Museum
Button Your Lip '90s Vintage T-Shirt – Feu de Dieu
Mugsy Buttons His Lips by CaptainEdwardTeague on DeviantArt
Vintage poster - Button Your Lip Throw Pillow by Vintage Images | Society6