on the tip of your tongue

on the tip of (one's) tongue

Almost able to be remembered, but not quite. Her name is on the tip of my tongue. Just give me a minute, I'll remember it. I had the answer on the tip of my tongue, but couldn't think of it in time.
See also: of, on, tip, tongue

on the tip of your tongue

1. If a remark or question is on the tip of your tongue, you want to say it, but stop yourself. `What do you make of it?' he said after a while. It was on the tip of my tongue to tell him he'd have to ask Charlie. But I said nothing.
2. If something such as a word, answer, or name is on the tip of your tongue, you know it and can almost remember it, but not quite. I know this, no, no, don't tell me, oh, it's on the tip of my tongue. What's the quickest way to remember a name that's on the tip of your tongue, but you just can't recall?
See also: of, on, tip, tongue