The Baader-Meinhof Phenomenon occurs when a person, after having learned some (usually obscure) fact,
word, phrase, or other item for the first time, encounters that item again, perhaps several times, shortly after having learned it.
My friend Adam from the “Zeugma” entry recently experienced an example of Baader-Meinhoff phenomenon reading this page. “I had just learned “mondegreen” the previous week. And I had also just learned about the phenonenon, so I’m happy to share it with you. Here’s a link. You’ll love this if you weren’t aware.”
He was right. I do love it. Many thanks.