Stunt Double
The art of purchasing a inflatable love doll (blow up doll) and naming it after a existant female, then ingaging in intercourse with the doll and imagining it is the actual person. Doll also can be used to tell person that they can literally go fuck themselves. 
Ryan bought a Stunt Double of Carly at Jims Wackin Shack and fucked its brains out!!!

Mike approached Carly with the Stunt Double and told her to literally go fuck yourself!!!