IShowSpeed Accidentally Flashes Junk On YouTube Livestream

Popular gamer and internet personality IShowSpeed showed a lot more than speed during his recent YouTube livestream ... accidentally exposing his junk in front of thousands of viewers.

The super-famous streamer -- who has 19.4 million subscribers on the platform alone -- was playing "Five Nights At Freddy's," when he decided to stand up and thrust in front of the camera as the character "Chica" appeared on screen.

"Oh, Chica, I miss you," Speed -- real name Darren Watkins Jr. -- seemingly said during the stream. "I'm about to f*** you, Chica. Oh s***, this d*** up in you, baby."

But during his excitement, Speed's penis slipped through his shorts ... and he was immediately horrified.