Used to describe a public preoccupation with matters of an emotional, sexual, or other such nature. Most noticeable when a member of a social group is distracted or despondent whilst thinking about their object of desire, despite hi-jinks or drunken revels by the majority. Also pertinent to those who have been dumped, are dumping someone, have been rejected etc.
Example 1:

"Where did Steve go? I thought he was getting a taxi with us?"
"Nah, he went off on an emo quest about half an hour ago"

Example 2:
"Is Jason coming tonight?"
"I hope not, all he talks about at the moment is Rebecca. He's on a total emo quest"
by ohasm1 July 9, 2009
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