I will just accept that it is used in the "Hey, Reggie, "Let's Screw, My Finger's Tired" sense, or "Leftist Sexes/Male, Female, Trannies"
Though, I gotta say, as a smoker of Lucky Strikes for 20+ years, I take offense to using "LSMFT" as a descriptive term in your comment for The One.I smoked Luckies for a decade myself. I couldn't think of another five-letter acronym to use in the satirical sense I was thinking of. ;)