retrocopulation

copulation from behind - synonymous with "doggy style"

My favorite sexual position is retrocopulation.

I loved her ass so we retrocopulated all night!

retrocopulation by Jason Adams May 10, 2006

retroculation 

after jerking off a couple of timez u cum without actuallie cumming

hey tat kidz retroculating my brainz /hez a retroculator /i just retroculated on yoo sis/lindsay lohan makez me retroculate all daa tyme in maa dreamz/retroculationman

retroculation by bumblebeebrainz October 29, 2007