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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,"
"I got my foot stuck under the table, iu"
And Also
"Wow i can't even tie my laces, iu"
by fatty spoon January 16, 2017
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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".
via giphy
by jennie kim December 30, 2016
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Iota Upsilon or IU is a secret membership African American organization founded for black intellectuals. It was established to share discussions and solutions reguarding the problems facing the black community and to build connections to do so. It is referred to as IU
He just got here and he has already been promoted, they must be members of I.U.
by Tylr Durrden January 07, 2017
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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!
by Sam and Stu August 26, 2008
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I.U. Is a secret group founded by I.M.W.

it is an elite group of the brightest minds that weigh in on all topics of society. With their president Tylr Durrden they are looking to make the world of the Internet a safer place
What a bright mind, I wonder if they are a member of I.U.
by Tylr Durrden June 01, 2017
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