I know you are but what about - meaning and definition. What is I know you are but what about
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What (who) is I know you are but what about - definition

SINGLE BY T.I.
What You Know About That; What you know about that

I know you are but what about      
This is used as a comeback to any insult. It is meant to confuse the other person, giving you the last words
<i>Chris: Donnie, you're a pilark.Donnie: I know you are but what about the table?i>
I Didn't Know About You         
SINGLE
I didnt know about you; I didn't know about you
"I Didn't Know About You" is a song composed by Duke Ellington, with lyrics written by Bob Russell.Sandra Burlingame, "Bob Russell", JazzBiographies.
You Know What I Like (El DeBarge song)         
SINGLE
You Know What I Like (El De Barge Song); You Know What I Like (El DeBarge Song)
"You Know What I Like" is a song by R&B singer El DeBarge featuring Chanté Moore issued as a single in 1992 on Warner Bros. Records.

Wikipedia

What You Know (T.I. song)

"What You Know" is a song by American rapper T.I., released as the lead single from his fourth studio album King (2006). The song peaked at number three on the Billboard Hot 100 and was certified double platinum by the RIAA following shipment in excess of two million copies.