You are here: Home Crazy 20 Of The World’s Biggest Human Body Parts 20 Of The World’s Biggest Human Body Parts Pages:Previous 1234567891011121314151617181920Next > 17. That is one long tongue. Not many people have a tongue that can stretch to four inches. Actually, there’s only one we know of so far. Nick Stoeberl, congratulations on your very unique trait. Click next for more!