When you stick your tongue out at someone, your tongue usually makes contact with your lips. If you pay close enoughattention, and add a little air to it all, it sounds like spf, short for Spiff.
Short for "Sex Porn Fuck" used to depict peak inceldom, an incessant desire for a girlfriend, masturbating more than 3 times a day and justifying such compulsive sexual behaviours as 'human nature'. Generally used in the hindi slang by typing the phrase 3 times (SPF SPF SPF!)
Ae mere mann karna tu Sex Porn Fuck Sex Porn Fuck Sex Porn Fuck (O my mind do SPF SPF SPF!)
(Inspired by a song in the 2012 hindi movie ferrari ki sawari)