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A Tampon (used or otherwise) that has been propelled by some means, such as throwing or via a catapult.
"Oh crap, here comes a bombardment of tampedos. Look out that ones been used!"
by Frostbyte January 26, 2006
another way of relating the menstrual cycle to random bursts of explosive bitchy-ness

derivatives Tampon+ torpedo= tampedo
Fire ALL tampedos!

but we only get the ONE a month >.>

FINE! Fire THE tampedo!
by TEEGAGAIN November 05, 2009