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A Yilong is the longest base unit in the Chinese System of Units. If something is Yilong it is almost unreallisticly large. Countries have adopted this definition by the great flood of Chinese who decide to study elsewhere in the world, specializing in Mathematics, Economics and or Physics.

Yilong is also used in a proverbs.
When you hear somebody say: "How long is a Chinese?", you'll notice the answer is often "Yilong".
by Poki5dolly November 25, 2011
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May 12 Word of the Day
When someone goes to the gym and spends 90% of the time on their phones scrolling through social media
Looks like its thumb day again for Jimmy with his usual routing... 3 sets of 5 snapchat selfies and 10 sets of scrolling through facebook until exhaustion
by Gary br April 02, 2017
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Yi long is a guy who has a lot more to himself than you think. He isn't shy but isnt really outgoing. He'd much rather be at home, alone, then at school facing all the work and challenge it brings. He goes to school anyways to see his friends, whom he trusts with most of his secrets and untold emotions. He respects those that he feels deserve his respect and when it comes to what he believes in, nothing can change his mind. He is wise, very wise. He gives the best advice and tries his best to understand you. He is the cutest thing you will ever lay your eyes on. His personality is different. He can be mean but can also be the sweetest in the world. He is loyal, trustworthy, kind, caring, loving, honest, and everything good in a person you could find. He has the biggest heart and a brave soul. He is everything a girl could dream of packed into one person. He's also incredibly funny and has real skills when it comes to video games. He is the most amazing person you will ever meet and one you will never forget. He will change your life and change it for the better.
My friend Yi long is a very very nice person to be with.
by Tan tek chow September 26, 2020
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3
Yi long is someone who has a lot more to himself than you think. He isn't shy but isnt really outgoing. He'd much rather be at home, alone, then at school facing all the work and challenge it brings. He goes to school anyways to see his friends, whom he trusts with most of his secrets and untold emotions. He respects those that he feels deserve his respect and when it comes to what he believes in, nothing can change his mind. He is wise, very wise. He gives the best advice and tries his best to understand you. He is the cutest thing you will ever lay your eyes on. His personality is different. He can be mean but can also be the sweetest in the world. He is loyal, trustworthy, kind, caring, loving, honest, and everything good in a person you could find. He has the biggest heart and a brave soul. He is everything a girl could dream of packed into one person. He's also incredibly funny and has real skills when it comes to video games. He is the most amazing person you will ever meet and one you will never forget. He will change your life and change it for the better.
My friend named Yi long is a very very nice person
by Tan tek chow September 26, 2020
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