Crazy mofo's. Psychotics. Loonies.
by Delta9 March 01, 2005
by teasin April 11, 2006
Dave and I grabbed a 6 pack of Busch and headed down to the lake for some looning. Little fight, no bite.
by Jr'sRaceToWin123 July 06, 2011
Damn that guy was chewing on his finger because he thought it was a peice of chicken. What a fucking LOON!
by Delta9 March 01, 2005
by Massive log February 08, 2019
In Aberdeen, Scotland, it's local dialect (doric) meaning a young guy. That's probably why there's another definition further up, for fans of the Scottish actor Billy Boyd. Whose not from Aberdeen I think but never mind.
by loon July 02, 2004