Piece Out, Man

While looking at magazines with Kierra:

Me: Hmm, here's a pumpkin pie, and ooh, a honey walnut pie. Yum, sounds good.
Kierra: Peace out, Mom.
Me: ??? Did you just say 'peace out'?
Kierra: Ya, there's a piece out of that pie, Mom.
Me: Oh. (laughing)
Kierra: Tricked ya!
(More laughing, and running to the computer before I forget this funny conversation.)