A word deprived from clutch Englishmen with creative ways of describing things in sentences you cant understand. This is a dagger, usually located between a mans legs, used to stab females in the muffin, hence a "Muffin Dagger". Sometimes resulting in a small blob on a weird screen showing up weeks later.
Dick N. Says "Hey chap, I totally got to sharpen my Muffin Dagger last night and got my stab on"
Gina O. says "YOU GOT MAD PULL RIGHT-O"