Tho' hundreds cheer his blatant bosh, He's but a goose for a' that.
To cut a bosh — "to make a figure"
"Bosh!" said the Vicar, rejecting the hint altogether.
It's a ~3 foot double lead with two 5-pin DIN plugs on one end and a big gameport-sized-n-shaped plug on the other. One end into the gameport, t'other plugs into the back of your keyboard. Bosh, job done.