The act of a threesome (2 females and 1 male), where in the females wear strap on sexual devices and insert one into the males rectum and one into his mouth, effectively putting him on the Rosisterie.
Dude, don't do a 3some with those two girls, Its not as much fun as you think and i have not pooped right in a week! they like the rosisterie!
by Rowdy42 April 22, 2011
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