Possibly an East-Coast term. Messing someone's shit up, quickly and effectively.
Not necessarily knocking someone out, more like beating them
dizzy,
bullying them, or wreaking their shirt and face up. Like when someone is being jumped and they are left them bruised and
pwned in just a quick second or single action.
Kevin Smith:
"Um... you
sure you want Brainiac razzling some polar
bears in this script?"
"Yo man, they razzling Lil
Joe-joe at the courts- annnd it's already over."