Top Definition
A martial art invented in 2013. Much like ninjutsu in that it is an art based around stealth and misdirection, except that Qitsu can only be wielded in a video game that allows you to press the Q button to stealth KO or kill your target from behind.
"Qitsu...it's a martal art."-Jesse Cox 2013
by xearts January 04, 2013

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