footronome 

A foot used as metronome

I was tapping my foot to the music and my friend pointed at my foot and said, "Nice footronome."

footronome by turmoilcss April 20, 2009

faptronome

A device intended to help train the user to fap in time with music.

A: Finally some good music to masturbate to! Now I can practice keeping in time with the music.

B: Exactly why I invested in a faptronome.

faptronome by soldieroflight September 26, 2011

footgonomic 

the same as ergonomic but for your foot.

"The acceleration pedal in the car had a very footgonomic design."

footgonomic by Tom Hanson-Akins September 5, 2005