a houdini can also refer to a sex act where a male, who is fucking a chick doggy style in front of a first floor window, quickly pulls out, and his friend jumps in to continue banging her. the first man then proceeds to run naked and dance in front of his bitch outside the window. magic, eh?
nonetheless, the more accepted defineition is the genuine spit and skeet technique.
"HEY BTICH" *dances naked" - matt s
"wtf? i thought he was fucking me?" - carly o
"haha, no bitch, im fucking you, houdini style!" - josh l