"You're" is the strongest argument winner. If you correct your opponents your to you're, you have automatically won the argument (unspoken law for human conversation).

Some argue that the "they're" correction is stronger, however, anyone who believes this is disillusioned and an uncivilized swine.
Idiot - Your so stupid.
Smart Fellow - Excuse me, I believe the correct grammar for that statement is "You're so stupid."
by JLoh_Loh October 31, 2017
How idiots spell the possessive adjective "your" when they think they have mastered not to misuse it.
Lelo: What's you're e-mail address?
Boba: What's I'm e-mail address??
Lelo: No, what's you're e-mail address?
by Johans February 15, 2008
John: your stupid
Ben: *you're. Who's stupid now? you fucking idiot
John: *dies*
by loilnibba420 March 28, 2018
A word that I wish people would actually use when they're supposed to.
<C> Your dumb!
<JB> It's "you're". Idiot.
by Jagfire June 21, 2003
a versatile burn, most effective in situations where a comeback is really inappropriate
A: "Look at my new shoes!"
B: "You're a shoe."
by Dellaca March 25, 2007
A word most internet users have yet to understand.
"your gay!!!!!!!"
by anonymous February 11, 2004
A word most people on the Internet cannot spell
Person 1: Your full of shit!
Person 2: Your grammar is shit!

Person 1: Your such an asshole!
Person 2: You're not worth my time.
by Restoring for over five years February 19, 2015