牛津电影里 100%
话在嘴边上(却一时想不起来)
if a word or name is on the tip of your tongue, you are sure that you know it but you cannot remember it
It was on the tip of everyone's tongue. Tyler and I just gave it a name.
It's on the tip of my tongue, Etta.
释义来自《牛津高阶英汉双解词典》第 9 版