IU 

Lee Ji-eun (born May 16, 1993), better known by her stage name IU, is a South Korean singer, songwriter and actress.
She signed with LOEN Entertainment in 2007 as a trainee and began her music career at the age of 15 with her debut album, Lost and Found. But it was through "Good Day", the lead single from her 2010 album Real, that she achieved national stardom.
"Good Day" spent five consecutive weeks at the top position of South Korea's Gaon Digital Chart and holds the record for spending the most number of weeks at No. 1 along with Psy's "Gangnam Style".

IU holds the Nation's Little Sister title.

IU by jennie kim December 30, 2016

iu 

IU stands for I'm useless as if you failed at something and you know it, or you got hurt in a stupid way. Or, just generally, you think you're useless.

"I just slipped in front of my crush.. iu,"
Or
"I got my foot stuck under the table, iu"
And Also
"Wow i can't even tie my laces, iu"

iu by fatty spoon January 16, 2017

IU 

Internet User!

I am a IU.
Same! I think everyone are

IU by henrevenge168 November 27, 2021

IU 

An ABSOLUTE QUEEN who deserves ALL the love and respect in the world

Oh my god, did you see IU's performance?

IU by army_aura19 January 18, 2022

iu 

It is a singular "we" instead of the plural "we".

"iu" are the best therefore it retains the singular of "I" and "YOU" are the best while meaning "WE" but emphasizing the singularity of the two individuals.

iu are the best on povdmm4...iu fight the nasty chavs that shit on the streets...I think iu have big ballz!

iu by Sam and Stu October 16, 2008

iu 

Iu is a very mysterious boy. He acts as if he didn't care about anything but deep down he is sensible and fragile. He tries to control everything as a way of hiding his flaws. He is fun to be around and a new person once you get through all his layers, he turns to be caring and soft. Iu knows the most interesting facts about the most unexpected things and will keep you entertained for ours. He also has sleeping disorders so don't expect him to be awake before 4 pm nor give you attention during the mornings, Iu is a night owl.

Sofia: I met with Iu and it was as if he had the whole conversation planned.
Laia: Tipical Iu...

iu by Not Laia February 24, 2022

IU 

A healthy hobby. Something that is wonderful to the soul, good food for thoughts and great for the heart.

IU is my hobby

IU by prplwnje8 June 26, 2022