Additional Reference: See any Passion Pit song for auditory version of a nipple-twist.
(General Situation) Those nipple twisters were nipple twisting so badly, we had to twist our own nipples just so we could nipple twist back to where we started!
2.) Amongst friends is sent with two "at" symbols side by side. (e.g. @@ ) When sent in this manner it is like a digital "poke" and often a digital conversation starter.
2.) Hi Jim, @@