mole run

noun

1. informal.
   usually plural any part of a system of underground tunnels, rooms, etc, prepared for use in the event of nuclear war

Example Sentences

The mole-run had brought him some two hundred yards, nearly to the edge of the marshland.

From Project Gutenberg

He had laid open his mole-run for a yard or so, and was still grubbing at it absorbedly.

From Project Gutenberg