When somebody says the word I'm trying to say it unlocks my ability to say it.

When somebody says the word I'm trying to say it unlocks my ability to say it. Why is it that I can't say a word, but if someone else says it, suddenly I am able to say the word no worries at all? I can say it a million times over after someone goes "you mean this?" Maybe it because it forces me to stop and take a breath. Not sure. Does that happen to you guys? I wouldn't mind if it wasn't so demeaning.