A sttds is a sexually transmitted disease contracted from a tinder hookup thus called a sexually transmitted tinder disease
She probably has sttd's you should probably swipe left.
by a_tron September 2, 2014
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Sexually Transmitted Timeline Disease, a reference to the new and unsatisfactory Facebook format.
"Damn it, they changed my Facebook profile to the STTD!"
by BlueBrother April 20, 2012
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