Drake -- Popping Off in the Streets (China Town Style)

Drake popped off on a group of photogs Saturday night ... but not with his words -- the rapper used a not-so-ancient Chinese party gag.

Drizzy and his friends were heading out of Osteria Mozza when our camera guy attempted to talk with the 27-year old about a number of subjects ... but Drake wasn't into the convo.

However seconds before leaving ... the rapper messed with photogs using a bang snap.