1 definition by poisengirl

Top Definition
when a friday falls on the 13th of the month
is thought to be unlucky and is associated with witches, dark spirits and back cats
as many unlucky things happen on this day as any other day of the year although we believe more occur because we are looking out for every little piece of "bad luck"
"its black friday you know, thats unlucky. hope nothing bad happens"
by poisengirl December 18, 2005

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