a walk off - A weird way to get yourself off by putting a fly in a bathtu

A weird way to get yourself off by putting a fly in a bathtub and letting it walk around your weenie.

I put a fly in the bathtub and it made me cum.

I had a fly walking around my weenie in the bathtub.

I put a fly on my weenie in the bathtub and it made me blow my load.