1 definition by :)XVX(:

1. One who offers a product or service in exchange for anal sex.
1. Guy 1: "The weirdest guy came over today, he tried to sell me a timeshare in exchange for anal"

Guy 2: "must be a backdoor salesman."
by :)XVX(: May 9, 2010
Get the Backdoor Salesman mug.