Wooden Bridge
This is whereby two men (not having to be gay) place their fully erect penis' bell end to bell end, creating a "bridge", they then have a mouse run across it.
Person 1: "hey can you get that mouse to me"
Person 2: "yeah but only by mean of wooden bridge"
Person 1: " okay..."
Person 2: "yeah but only by mean of wooden bridge"
Person 1: " okay..."