chat burn-out
When you make a new friend on facebook/myspace/gmail/aim and chat every time both of you are online until you have nothing to talk about and start avoiding the friend except for the occasional update. The point where all topics have been covered and chat becomes less frequent is known as chat burn-out.
Bronson: Hey David what are you and Maddie chatting about on facebook? David: oh nothing much these days, we kind of reached chat burn-out.
chatting out of one's arsecrack
To most this phrase seems unfamiliar until it is explained that this is the historical precursor to the frequently used and highly popular word chatinowtuvisarscruck, most commonly heard whilst urinating in the vicinity of a public house or bar. After decades of research, linguists have finally concluded that the genesis of this phrase dates back to 1654 when early missionaries discovered the small mid-pacific island known locally by the mutant inhabitants as Paaahrrrrumpiturrruumph, their erroneous DNA strands having caused each of their digestive-vocal systems to have formed backwards. In modern times, the phrase has become synonymous with the performances of the UK's one man freak show "David Cameron", who has yet to utter a single a word that has not been born from within his arse, as this is where his head is permanently lodged.
"I have reason to believe that the message one is currently attempting to convey may not be entirely true, or at least is to a significant degree fabricated. Therefore, I find it not disproportionately crass to assert that one is chatting out of one's arsecrack!"
Chatting it out
Working something out with a casual conversation.
"Chatting it out makes it so easy to talk about"