honey wagon

• honeywagon

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honey wagon (plural honey wagons)

1. (slang) A vehicle used to collect sewage from septic tanks etc. Also called a cesspool emptier.

   Synonym: honey cart

2. (film, television) A type of multi-room trailer with toilet facilities for use by film and television crews.

• honey barge
• manure spreader
• muck spreader

• In the book Airport, by Arthur Hailey, he mentions how a sewage collection truck — a vehicle which empties the toilets of airplane restrooms — is known by the airport personnel by the slang term honey wagon.