A man has gone viral on TikTok after sharing videos of his abnormally long thumb.
Jacob Pina from Massachusetts uploaded a video of his extended thumb on TikTok and several people commented asking how he managed to extend and retract it.
He claimed he could extend it to be about 12cm long before retracting it to a regular length.
Pina shared a video with the caption, "POV: You have the biggest thumb in the world", and he had people questioning why it was so long.
"How did you figure out you could extend your thumb?"
Another commented: "How is this possible?"
In another video, Pina explained he figured out he could extend his thumb when he was playing around and realised he could make it longer.
"I can easily retract it to make it shorter again and it doesn't hurt me to do either."
A few people said it sounded like a plastic straw being straightened out when he extended it.
Pina also showed his TikTok viewers a video of him bending his thumb back to its normal size, which received over 1.8 million views.
