The skull and crossbones functions by removing any rune of choice from the board.
Other fraternal groups also use the skull and crossbones in their symbolism or in their secret fraternal rituals.
The pirate has abandoned his skull and crossbones and his cutlass and traded them for a pinstripe suit and a telex machine.
Is there, for instance, a skull and crossbones marked on each container?
We know that the lot opposite, under the banner of the skull and crossbones, would give our sovereignty away.
It might as well nail the skull and crossbones to its mast.
In an extreme case a skull and crossbones sign could be placed on each cigarette to indicate that there was an inherent danger to health.
The skull and crossbones was the best one.