A phrase vaguely
assuming that someone doesn't know something
unlike you. Usually used by anyone who can't
stand the fact that somebody young or old may know more than what you do.
Example 1/ Girl:
Hey auntie I saw West Side Story some days back and I just love it. Especially that ending.
Auntie:
What you know about that? That's my movie stop playing yourself. I saw it in theaters.
Girl: But you told me that you've only seen half of the movie in theaters when it came out because you fell asleep. You've never watched it again.????
Auntie: you'll understand when your 70.
Girl: lol....... yeah sure
Example 2/ Beehive fan: I love my hit jam Irreplaceable by the God Beyonce.
Beyonce:
what you know about that??? I wrote the song. Bow down b******.
Ne-Yo: b**** please I wrote that song
Beehive fan: quiet Ne-Yo the Royal Queen is talking.