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1.
To ejaculate in to someone's ear
On a trip ,John gave Joe a Flying Carl! Isn't that nasty?
by fh February 14, 2006
 
2.
When you shit in a sock and then hit someone in the head with it. Sometimes mistakingly refered to as a Hot Carl.
My neighbor had been running over my garbage cans lately so I snuck up behind him one night and wacked him with a Flying Carl.
by SI-Ex-Pat January 15, 2010