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The act of using a password or other safety feature to prevent your friends, parents, girlfriends, etc from discovering your assortment of hot or racy pictures on your cell, computer, email or other encrypt-able devices.
Girl : I dunno, should I send john this pic?

Girl two : It's fine, John practices Safe Sexting!

Girl : That's good, no way that this pic will get into the wrong hands if he is Safe Sexting.
by Hyperman036 March 04, 2011
The practise of leaving one's face or other distinguishing features out of a sext, in order to ensure deniability should the picture fall into the wrong hands.
My boyfriend's phone got stolen by somebody in the school after we sexted. I'm not worried though. I practise safe sexting.
by Blakeyboy93 March 21, 2011