Gee-haw Whammy Diddle

A gee-haw whammy diddle is a mechanical toy consisting of two wooden sticks. One has a series of notches cut transversely along its side and a smaller wooden stick or a propeller attached to the end with a nail or pin. This stick is held stationary in one hand with the notches up, and the other stick is rubbed rapidly back and forth across the notches. This causes the propeller to rotate. Sometimes also known as a Ouija Windmill, a Hooey Stick or a VooDoo Stick. The word "Whammy" is sometimes Whimmy and the word "Diddle" sometimes Doodle, giving it three possible other names, and the "Gee-Haw" may also be dropped.

"Gee-Haw" refers to the fact that, by rubbing your finger against the notched stick while rubbing, the direction of the spinning propeller may be reversed. The operator may do this surreptitiously and yell "Gee" or "Haw" to make it appear that the propeller is reacting to the commands. If you call it a "Hooey Stick", you would yell "hooey" each time you want the direction to change.