When in the doggy style position, the guy spits on partner's back (which she thinks is cum). Then turns her around and blows a big cum shot on her face.
She just received a Great Houdini.
You have the definition right, but the word wrong. It's called the david copperfield. Houdini got himself out of locked handcuffs, copperfield does the slight of hand.
Sara wouldn't let me shoot it on her face, so I gave her the david copperfield!