1 definition by Alcyre

describes a person who is flakey and totally ditches their friends when everyone is hanging out. They seem to always flop the last minute and pull a no-show often without telling anyone.
-Dude, I don't think Aaron is coming over here.
-What? Damn, he's being hella swoo.
by Alcyre May 25, 2009
Get the swoo mug.