lkitten's definitions
When a person catches a cold or flu virus after a sexual encounter with another person infected with the virus.
Tim: How come you're coughing so much?
Andy: Caught a STF from that chick last night.
Sexually Transmitted Flu (STF)!
Andy: Caught a STF from that chick last night.
Sexually Transmitted Flu (STF)!
by lkitten February 27, 2010
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