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1.
Mirriam Webster Modern American Edition, pub. 2006, noun. adv. pron. "Zal coh," der. Latin: term for incompetence, ineptness, and/or general inabilty to manage.
"VDOT apparently Zalco'd the adjustment of the traffic lights at Route 123 and Spring Hill Drive."

"Saddam Hussein is such a Zalco."

"Can you believe that airline? They are such Zalcos."

"We would have won the game if our coach hadn't pulled a Zalco."
by Robert HH June 30, 2006