When a photo has been digitally edited using photoshop
. This normally involves celebrity porn or kittens.
That's not Britney Spears, that's been Photoshopped!
A lump of excretion which is stuck on an object once it has been removed from someone's anus.
I pulled out of her arse and saw a chicken nugget on my bellend!
Pork scratchings is the term for the left over 'crumbs' after the penis ejaculates and is not cleaned or wiped, and the remaining dried up semen is brushed/scratched off.
See also knobcheese
Please excuse the mess on your brand new black suit, I had pork scratchings.