Top Definition
Zombie Apocalypse Combat Team; Small but resourceful group of civilians who are prepared to respond at a moments notice, at the first sign of Zombie Apocaplypse Outbreak.
"The streets were deserted tonight. I was on high alert in case I needed to initiate ZACT."

"I thought I saw a walker today. I was ready to call on ZACT."
by Daryl Grimes November 01, 2012

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