TELL ME SOMETHING I DON'T KNOW!! (for the texting lions and lionesses) a texting response to someones' 'same old song', expressing boredom (YAWN!!) with someones repetitive and/or boring prattle, you've heard ten thousand times before!!
texting: babble, babble babble...-T.M.S.I.D.K.

that 'bird' is SO excruciatingly FINE!! -T.M.S.I.D.K.

urban dictionary no longer likes michael foolsley definitions!! -T.M.S.I.D.K. !!
by michael foolsley September 05, 2013
tell me something i don't know
maddi: i like your green purse
jamie: tmsidk
by madz&jam December 28, 2008

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