Superlative pertaining to a thing, event, or person containing high, or exceedingly high levels of consistent awesome.
"Yo, you should totally check out this new Shins album. It's completely fucking emyo."
"Holy mother of fuck, last night was emyonated beyond belief!"
"Hey dude. Do you know *so-and-so*?"
"Oh shit yeah man. That girl is pretty emyo."