An energy weapon used on the TV show Stargate SG1. It resembles a cobra ansd fires a lightning bolt. One hit from a zat will stun you. Another shortly after will kill. One more and you're vaporized.
by tesformes April 29, 2004
by Bojay Blues October 11, 2008
zat is a common expression used to express amazement in some Bangladeshi social networking site. Just as lol.
by Priyanka Ghosh July 19, 2017
by Zily Limmerman December 12, 2007