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.
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.
by handle is already in use May 27, 2019

by Imnotdumb12 February 12, 2017

by Malbon July 12, 2006

by Rudy Huggins May 3, 2020

by slang banga July 7, 2006

Example 1:
Person 1: "You should stop being such a moron"
Person 2: "Walk what you talk"
Example 2:
Person 1: "You complain about things but you do them yourself. You should walk what you talk"
Person 1: "You should stop being such a moron"
Person 2: "Walk what you talk"
Example 2:
Person 1: "You complain about things but you do them yourself. You should walk what you talk"
by finlay29 November 13, 2016

by ejsuntan October 23, 2020
