1. (noun) Someone who repeats conversations in person that have already been fully discussed during an MSN Messenger conversation.
2. (noun) Someone who brings up an issue that has been fully discussed previously between he/her and a friend, but this time to that same friend infront of other people so that the other people get the impression that it is new material.
1) A: Man, that Eric kid is such a douche, he talks shit about you behin ----
B: Dude, shut up. We already talked about this on msn last night, stop being a fucking retalker.
2) A to B: Man, that Eric kid is such a douche, he talks shit about you behind your back eh???
C: Are you guys just repeating this conversation infront of me because if so I don't give a shit.....