You're mom

A fat whale who gave birth to you

You: I love mom !
You're dad: She's a fat whale
Fat whale : You're mom

You're A kill

You're a funny person.

Lol, you're a kill.

You're fine

Something that someone says when they're fed up with your crying

You're fine as hell you motherfucker

You're not Jill!

To be in a state of not being Jill.

"Dude! You're not Jill!"

You're so not that.

When trying to be something that you're not.

You think you're hot but you're so not that.

You're a peach

You're a bitch. Used by southerners; said in a sweet tone but meant in a derogatory way - much like "bless your heart".

Oh, honey, you're a peach!

You're Fired!

1. An exclamation of frustration, dejection, or contempt directed at the cause of those feelings.

2. An exclamation used to communicate the subject(s)'s exclusion from a conversation or social event. See: Talk to the hand

possible origin: tturtle & friends on #seattle @ irc.EFnet.net circa 1998

girl - "My mind is glowing."
boy, distracted - "...don't care."
girl - "You're Fired!"