Green’s Dictionary of Slang

camp n.1

(Aus./Irish) a short rest, a lie-down; thus have a camp, go to camp, to take a rest.

[Ire]Kerry Examiner 8 May 4/5: Jaded and worn out, she at length sort repose in a pipe and a ‘camp’.
[UK]‘Aus. Colloquialisms’ in All Year Round 30 July 66/2: ‘To go to camp’ [...] now signifies in the mouth of a dweller in houses, simply ‘to lie down’, ‘to go to bed’ .

SE in slang uses

In compounds

camp dog (n.)

(US tramp) one who runs errands and does small jobs for his fellow tramps.

[US] ‘Jargon of the Und.’ in DN V 441: Camp-dog, The hobo at construction camps who takes care of the bunks and belongings of the hoboes at work.
[US]Monteleone Criminal Sl. (rev. edn).
camp meat (n.) [i.e. meat obtained by those in a camp, rather than on a farm]

(US) deer that has been illegally shot by poachers.

[US]WELS.
[US] in DARE.