Top Definition
A team of "secret agents" who belong to mysterymissions.com and the facebook group. Agents have agent names and are told to go on "missions" via facebook, email, and text.
A Mystery Mission would appear like this:

"Mission: Stick post-it notes around your neighborhood that make people happy."
#mystery google #mystery missions #mystery missions beta #mlia missions #myster agents
por Agent hELLfIrE 06 de Dezembro de 2009
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