Well, a rather naughty one in this case. I made it for a colleague of mine - he asked for it!
By that I don't mean that he deserves an insult, but that he actually wanted one like that after seeing a similar one.
It's a simple cross stitched self covering button that was so quick to make. I'm planning on making more four letter word buttons as well as smaller ones with single letters to spell out more insults.