box with docks
n.— «For years, industry slang for a convention center was “a box with docks.” It was blunt but apt shorthand. In recent years, though, convention center managers have been learning the lesson that hotel companies have already discovered: it is not enough to offer just a place to stay or meet.» —“Perking Up Convention Halls” by Martha C. White New york Times Aug. 28, 2007. (source: Double-Tongued Dictionary)
Further reading
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The slang term 4-55 air conditioning is means cooling a car by driving fast with all the windows down. This is part of a complete episode.
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