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Just a variant of the word nice. It comes from Japan and Korea where people misspell the word nice by saying nicu! It sounds funny and is used often online typically as a positive reply on something.
Hi! Did you know I just nailed my job interview?
- Nicu, nicu :)
by Solarpowa May 06, 2018
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NICU is short for Neonatal Intensive Care Unit.

Its where they place sick and/or premature newborns so that they can be monitored, and if necessary, cared for by nurses and Drs. and also therapists.
1. He was placed in the NICU after being born at 18 weeks, and was on a ventilator until he got to be about to his due date at which time he was given a tracheostomy.
2. awwwwww, does he have any lung function?
3. No. He can't see, hear, move, and pp0retty much lies there doing absolutely nothing.
by 1992peter March 27, 2010
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a word that can be used in place of any noun. can also be used as an adverb, adjective, and in some cases, a verb. history says its origin comes from the boat marco polo led on his expedition in the 13th century. others claim nancy polosi just randomly came up with the wrd. nobody knows for sure.
noun: that cup is full of nicus.
adverb: he nicusly walked down the street
adjective: mike's head is nicusish
verb: quit nicussing around!
by bob dole the titan June 23, 2009
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