A Jayne's reply
A 'comeback' or retort that is so predictable that the intended recipient is able to preemptively create a facebook group that... um... predicts it.
Can also be used to describe the language 'skills' of facebookers who say things like: ROFL or EPIC FAIL or who use the keyboard to create twee little graphics that depict ladders replete with accompanying cliches.
For instance, a 'Jayne' might actually bother to type a ladder graphic in the absence of something worth saying. Follows it with "Something for the climb down. Careful now."
You say: "Bit of a 'A Jayne's reply'"