The WWE superstar got into a heated shouting match with another man after an event in NYC on Friday night -- with the two cussing each other out right on the street ... and TMZ Sports has the footage.
It all went down outside Irving Plaza, where Jericho had just appeared at a tribute show for musician David Z, who was killed in a recent bus accident.
Witnesses tell us multiple people approached Jericho outside the venue asking for pics and autographs -- and while he obliged at first, Y2J started to get frustrated and began to turn people down.
That's when our video begins -- you can see Jericho and a guy who said he was a fan yelling at each other."
Read more via TMZ, and watch the video below: