BuzzFeed spoke to Jacob, who said he discovered he could extend his thumb during his freshman year of high school. "I just dislocate my thumb, by forcing it out of its socket, to make it appear longer," he explained, adding, "My doctor says it's abnormal but can't officially link it to any known medical conditions."
"When I posted my first video to TikTok, I had no clue I'd get this sort of attention from it. People have mixed reactions, like disgusted, freaked out, or curious," he said.
