Similar to saying "
look who's talking!"; a
comeback for when somebody says or insults something or somebody, but the statement is
hypocritical
Clark - "
Hey Neil! You're so stupid!"
Neil - "Says you! You're the one with an F in
Math!"
Bob - "Wow! This paragraph is the mos sloppy thing I have seen!"
Mark - "Says you! All you wrote about was how 2+2 is equal to 5!"