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1.
a douche trying to get his money back based on a technicality that should be overlooked.
"We started a football pool at CR but we got Tuco'd."

"I got into a car to blow a John but he came in his pants right away. He tried to Tuco his cash back."
by T1x September 22, 2013
 
2.
Name for silly looking and/or simple minded animal.
Don't be such a tuco!
by naughty008 January 06, 2012