open (one's) big mouth

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open (one's) big mouth

To say something that is meant to be a secret; to say something in an indiscreet, noisy, or boorish manner. Why did you have to open your big mouth about my crush on Tommy? Why couldn't you just keep it between us? We would have gotten away with the plan if she hadn't opened her big mouth!

Common Names:

Name	Pronounced	Usage
Iodocus	-	Ancient Celtic (Latinized)
Khalida	-	Arabic
Theutrich	-	Ancient Germanic
Sung-Ho	sung-ho	Korean
Magdalena	mahg-dah-LE-nah (Polish), mahk-dah-LE-nah (German), MAHG-dah-le-nah (Finnish), mag-da-LAY-na (English)	Polish, German, Dutch, Swedish, Norwegian, Danish, Spanish, Occitan, Slovene, Czech, Bulgarian, Mace
Jarmil	-	Czech