Top Definition
A determination of whether a headline, in particular a ridiculous-sounding headline, would look out of place if reported by the comedy newspaper The Onion, which is known for 'reporting' fictional news stories frequently of the satirical or ridiculous variety.
"SOMETHING WENT WRONG IN JET CRASH, EXPERTS SAY"? I don't think that passes the Onion test.
by Kaydiv April 03, 2011
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