Eighth Man Bound

From Tardis Wiki, the free Doctor Who reference

Eighth Man Bound was a multidimensional game of Perigosto, played with a ball and a specialised Perigosto stick.

The phrase also appeared in a poem:

Eighth man bound
Make no sound
The shroud covers all
The Long and the Short
And the Old and the Loud
And the Young and the Dark
And the Tall (NA: Lungbarrow)

The Eighth Doctor once referred to himself as the Eighth Man Bound. (NA: The Dying Days)