Walrus - The pipe was (for the normal issue) up sprits RN on special occasions ie an extra issue - The signal or order was splice the main brace.

The main brace being probably the most important bit of the standing rigging was never spliced, but always replaced. Hence the adoption of the signal to signify an extra issue of liquor.

The drun beat was "Nancy Dawson" to signify up spirits.

Gareth