acronym for Strictly Platonic Friend, used under these various conditions:
-the person has to actually be a CLOSE friend of an opposite sex
-your relationship has to resemble that of two romantic lovebirds' in some aspects
-yet the thought of you two as a couple makes both of you (or one of you) feel squeamish
-the person is conveniently your escort for all the shit-i-need-a-date events
A: yo, i always see you and ryan together now. are you guys dating?
B: hahha, no. he's just my spf.
Side panty fuck. Inserting his cock without taking the trouble to peel off your panties. Creates a slightly different feel. Ideally done when wearing a sexy pair of panties.
He didn't want to take the time to take off my panties so he just decided to go for an spf.
When you stick your tongue out at someone, your tongue usually makes contact with your lips. If you pay close enough attention, and add a little air to it all, it sounds like spf, short for Spiff.
When Julie stuck her tongue out at Eric, she breathed out a bit causing a spf noise.
when your computer is such a fucking potato that u get seconds per frame instead of frames per second
Seconds Per Frame.
Similar to FPS(Frames per Second), it indicate how much seconds it take to render one frame of video or a game.
Mainly used by: Gamers playing high end games on ancient hardware and amateur motion artist rendering videos in desktop PC.
Guy 1: Dude! I downloaded GTA 5 yesterday and it played like a charm at 60 FPS.
Guy 2: Ha! so pathetic, I used to play the same game at 186 SPF.
Guy 1: Woah! that's awesome!... wait... what!
Sold Pending Funds, This item has been sold to someone but it has not yet been exchanged for money.
Item #1 - $100
Item #2 - $30
Item #3 - SPF
Item three has been sold but has not been traded
Safe way of saying Shit Piss Fuck online. Used to express extreme anger at a situation.
The doctor just told me I have inoperable cancer of the balls... SPF!