These terms for self-stimulation are found in The Bald-Headed Hermit and the Artichoke, an Erotic Thesaurus (Arsenal Pulp Press) by A.D. Peterkin.

auto pilot
devil's handshake
four sisters on Thumb Street
gusset typing
hand-jive
Levy and Frank
menage à un
Onan's Olympics
pocket pool
pulling the goalie
Uncle Frank
white-water wristing
yankee