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Male who is obcest with masturbating.
Your brother is such the jackaloon. He just went back to his bedroom for the 5th time today.
by Senkan September 26, 2008
a publicly acceptable way of calling someone a jackass. someone who recently has done something stupid and deserves to be called a jackass, but there are people around that wouldn't appreciate that and so you simply call them a jackaloon.
"Dude what's wrong with your toaster?" "You have to plug it in first you jackaloon."
by inandaroundyourmouth February 03, 2010