Like oh no, but when you say it so fast that it blends together. Typically used when reacting to horrifying or disappointing events.
TV Host: Mike, the results of your DNA test are in. You are the father.
Mike: ohno ohno ohno
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Exclamation of displeasure
Ohnoes! my boxe haz ben hax0rd!
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When you're too lazy to put a space between oh and no
Friend: "I hat you!!1!"
Other person: "ohno!"
Friend: "um wat?"
Other person: "I was being lazy.."
Friend: "oh..."
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group of hardcore little fags who think its cool to act hardcore behind a keyboard
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