dnu

Usually used online or in texting.
Meaning: Don't know. Acronym. Similar to dunno.

On an instant messaging service.
A)"How are you today darling?"
B)"Oh, i dnu"
A)"How can you not know?"
B)"i dnu"
A)"Why are you being like this"
B)"i dnu"
A)*goes off of computer to cry*

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