What does "Yeah, you did" mean?
Solution 1:
As I guessed, it is a phrase with a specific meaning, and this is the reference:
http://www.urbandictionary.com/define.php?term=YEAH%20YOU%20DID%21
A phrase commonly used by Casey Burns which has rapidly gained widespread use.
It is used to add exclamation when a person states something that is either awesome, innuendo or just plain stupid.
YEAH YOU DID!
YEAH I WILL
YEAH YOU ARE!
YEAH I AM!
YEAH I WILL!
YEAH I DID!