Top Definition
A Sirius Satellite Radio shareholder (NASDAQ: SIRI) who doesn't understand the complexity of the stock market and tends tries to pump up SIRI by making false claims and shady intreprations of shareholder reports.

combination of SIRius + idIOT
"again, the siriot mindset --- everything is a bidding war, everything is high stakes, throw out the cash...."
by mike August 08, 2004

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