Robin Hood - a derivation of anal sex. Robin Hood takes place when a penis enters the anus by way of splitting a piece of fecal matter (ie. turd, poop, crap) thru the center of it.
This act emulates "Robin Hood's" legendary archery markmanship, specifically referring to an arrow splitting an arrow which has already been shot into the bullseye.
Some examples include;
Hey baby, its only twenty-five for a robin hood.
When I told my co-workers about the robin hood, they all laughed.
My buddy Jamie thinks robin hooding is disgusting.