a loving term to grab the attention of someone; something you say when you want something; could mean simply "i love you"; a way of expressing happiness or confusion; just a wonderful term.
GIRL: ishnoo!!!
BOY: I love you too.

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FRIEND ONE: ishnoo?
FRIEND TWO: yeah, I like this song too.

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PERSON ONE: ishnoo!
PERSON TWO: HIIII!!

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CHILD: (gestures to radio) ishnoo!
MOM: yeah, you can change the channel.
by dove0love March 1, 2009
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