An example of the tip-of-the-tongue phenomenon is:

Question

Quizplus · Accepted Answer

The tip-of-the-tongue phenomenon refers to the feeling of knowing a word or piece of information but being unable to retrieve it from memory. Forgetting where one placed a shopping list or car keys is simply forgetting where an object is located, while forgetting where one placed a friend's phone number is a matter of forgetting a piece of information entirely. The inability to remember a friend's name while making an introduction is the classic example of tip-of-the-tongue phenomenon.

An Example of the Tip-Of-The-Tongue Phenomenon Is