"You know, when I started skateboarding there was no such thing as a cellphone," he lamented. "And what you never wanna do is go skateboarding and look at your cellphone.. because you end up like that," he said, pointing to his missing incisor.
"I went down. I thought I broke my nose."
The "Stranger Things" star said he is currently working on getting it fixed, but added it will take almost a month before his Hollywood smile is back up and running.