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3.
1. An insult proclaiming that the person called so is dumb, stupid, or unintellegent.

2) More than just a mere fool one who is VERY stupid. Fool of a TOOK.
Robert: 1 + 1= 5!!!
John: Actually...The correct answer to such an equation would be 2 (Two)
Robert:NO ITS NOT OMG YOU'RE SO RETATED
John:...Fool of a Took...
by Ace April 12, 2005
 
1.
A phrase used by one Gandalf the Grey, the famous, kindly wizard from the Lord of the Rings Trilogy. It is used during the Mines of Moria scene in the first in the trilogy, the Fellowship of the Ring. Gandalf says it to Peregrin "Pippin" Took, to display his anger and fustration directing at him for knocking a skeleton down a well, alerting the orcs of their whereabouts and putting the entire fellowship in danger once again.
"FOOL OF A TOOK!!!
Throw yourself in next time, and rid us of your stupidity!!"

-Gandalf the Grey
by JuliaMarie August 14, 2007
 
2.
someone dumb and irresponsible
someone is a fool of a took if they leave their facebook logged in and another person hacks it
by sjtothemax September 10, 2011