Masturbation Is Good!

Code 4 Masturbation

Jerking (the) Jerry

Cranking the Engine

Revving your Engines

Driving the Stick Shift

Tonying the Tiger

Cranking that Artichoke

Hammering the Sausage

Whacking the Weasel

Spreading the Mayonnaise

Grating the (Dick) Cheese

Pumping the Shotgun

Sharpening your Spear

Chambering a Round

Milking the Cow (Udders)

For more names check out the List