Top Definition
SMSTD or S.M.S.T.D. abbr.

1. noun. Short Message Service Transmitted Disease: a text message of a comical sexually transmitted disease such as chlamydia.
2. verb. to send a textually transmitted disease over a mobile phone.
I spent my office hours SMSTDing syphilis to everyone in my address book. not many people found it as funny as i did.
by DrJonas December 11, 2006
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