'Fatigue duty' definitions:

Definition of 'fatigue duty'

noun

Labor of a nonmilitary kind done by soldiers (cleaning or digging or draining or so on); "the soldiers were put on fatigue to teach them a lesson"; "they were assigned to kitchen fatigues" [syn: fatigue duty, fatigue]

Definition of 'Fatigue duty'

From: GCIDE

Fatigue \Fa*tigue"\, n. [F., fr. fatiguer to fatigue, L. fatigare; cf. L. affatim sufficiently.]
1. Weariness from bodily labor or mental exertion; lassitude or exhaustion of strength. [1913 Webster]
2. The cause of weariness; labor; toil; as, the fatigues of war. --Dryden. [1913 Webster]
3. The weakening of a metal when subjected to repeated vibrations or strains. [1913 Webster]
Fatigue call (Mil.), a summons, by bugle or drum, to perform fatigue duties.
Fatigue dress, the working dress of soldiers.
Fatigue duty (Mil.), labor exacted from soldiers aside from the use of arms. --Farrow.
Fatigue party, a party of soldiers on fatigue duty. [1913 Webster]