Question

to be on the tip of your tongue - What was his name again? - Aaghh, it's on the tip of my tongue - Robinson or Robertson, .. oh God, what's happened to my memory?  - It was on the tip of my tongue, but by the time I remembered it, the conversation had moved on.  - It was on the tip of my tongue to say he looked young, but I realized how extremely naпve and human such a comment would seem.  - The name of her affliction was on the tip of her tongue. Yes, that was it, Alzheimer's. Like me, she looked all right on the outside, but she, too, was unable to work anymore.

Accepted Answer

to know what you want to say but to not be able to remember it at the moment you want to say it

Idiom	to be on the tip of your tongue
Definition	to know what you want to say but to not be able to remember it at the moment you want to say it
Examples	- What was his name again? - Aaghh, it's on the tip of my tongue - Robinson or Robertson, .. oh God, what's happened to my memory? - It was on the tip of my tongue, but by the time I remembered it, the conversation had moved on. - It was on the tip of my tongue to say he looked young, but I realized how extremely naпve and human such a comment would seem. - The name of her affliction was on the tip of her tongue. Yes, that was it, Alzheimer's. Like me, she looked all right on the outside, but she, too, was unable to work anymore.

Tip Tongue I Looked Remember Moment Aaghh Robinson