powder monkey

/P AW1 D ER0 M AH1 NG K IY0/
noun
  1. 1

    An explosives expert. A person who sets explosives.

  2. 2

    The persons employed to carry gun powder from the ship's magazine to the gun deck during a battle; in the 18th century Royal British and U. S. Navies, this task (also carrying water) during battles became a permanent nickname for the ship's cabin boys and apprentice seamen.

  3. 3

    A skier or snowboarder who avidly seeks out the โ€œpowderโ€ (light, dry, fluffy snow).

Synonyms

Source: https://en.wiktionary.org/wiki/powder%20monkey