long drop, noun phrase
Colloquial. A pit lavatory. Also attributive.
1979 Het Suid-Western 7 Feb.In October, 1972, they dug up the old pit lavatory or ‘long drop’ near the cottage.
1993 G. Silber in Flying Springbok June 74It’s a small, remote camp,..and you stay in five-star army tents with adjoining bucket-showers and long-drop toilets.
A pit lavatory. Also attributive.

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