backhand shalanski
A sexual manuver in which a woman, in a sixtynine-esk position, with her muff above the man's head, greases his rod with baby oil and proceeds, with reverse grip, a manual release of his baby batter.
I was at the Octopussy, when my counterpart came out of a room, labeled 'PRIVATE', looking like he saw a ghost and told me she gave him the 'ole, backhand shalanski.