“slip of the tongue”按字面意思也很容易理解，舌头打滑，意思相当就是指：口误；失言；说漏嘴；一时口误。

【例句】
Did I call you Richard? Sorry, Robert, just a slip of the tongue.
我刚才是不是叫你理查德了？对不起，罗伯特，我是一时口误。

At one stage he referred to Anna as John's fianc é e, but later said that was a slip of the tongue.
曾有那么一段时间他把安娜称作约翰的未婚妻，但后来又说那是口误。