This is sex maneuver that is performed when a woman does not want a man to come inside of her during sex, but the man wants to do so regardless. In this act, the man must exclusively be doing the woman doggie style for the "magic act" to be performed. He cums inside of her and spits on her back, bluffing his pull-out.
When the man cums, instead of pulling his cock out of her, he cums inside of her and then quickly pulls it out once he is done releasing his jizz, and then dribbles a large amount of spit on her back. He then tells her "I pulled out baby", thus pulling what is known as a David Copperfield. believing he is telling the truth, she kisses him and tells him weet nothings.