Top Definition
an expression of immediate dismission. Usage is aimed at perplexing the current speaker and interrupting their train of thought in an attempt to cease the conversation at hand.
Speaker 1: "I was talking to my boss the other day about the latest executive summary reports and..."
Speaker 2: "Ninibaba!!"
Speaker 1: "huh?"
Speaker 1: "Now what was I just saying?"
Speaker 2: " I don't know, I forgot. I gotta go."
by iv April 15, 2005

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