A reply given to a statement, sarcastically, to illuminate the verisimilitude of the aforementioned statement.
Dude, Jenny is such a little slut!
Yea, she's not allergic to dick (the Reverse Reply).
Holy shit, it is so hot!
Yea, it's not cold.
Made possible by the moronic addition of successive, eerily similar pictures on Facebook, Picture Movies are when one cycles between 2 (or more, depending on the moron) pictures quickly in a photo album, producing an effect similar to animation.
Dude, that dumb bitch who always puts pictures of herself on Facebook is a fucking Picture Movie library. Look at these -- three in a row!