●shoot your ˈmouth off (about sth)1.talk publicly or carelessly about things which should be secret随便乱说,信口乱讲(涉及秘密的事)◆This is a secret. Please don’t shoot your mouth off to everyone about it.这可是秘密,不要对人乱讲。2.talk loudly and with too much pride about sth吹嘘;胡吹;大吹大擂◆Mark is always shooting his mouth off about all the money he earns.马克总是吹嘘自己如何能挣钱。OPPwatch your mouth/tongue