An emoticon used on instant messaging sites to show nerdiness, people who are self confident can also use it on themselves, to almost send themselves up.
The 8 is meant to signify glasses
Person: Tonight I'm going to watch the entire Series 2 of Doctor Who 8-|
An expressing used in IM chat to be read as an emoticon rolling its eyes.
Friend 1: Waaaa! I have this Huge zit on my noze!!!! ;((((
Friend 2: 8-| Shut up, no one wants to hear you bitch about it.