hottle
n.— «Please use hottles and lids when taking coffee to rooms.» —“hottle-wotd” by suzannelong Flickr Feb. 23, 2007. (source: Double-Tongued Dictionary)
Further reading
juicy noun. A person who illicitly carries alcohol in a water bottle. «Gwen Alexander, who’s been working at the Astoria pool for two years, confirms there haven’t been any issues with fighting this year but she said rule enforcement is...
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Hottles have nearly disappeared, but ordering coffee or tea in a diner or inexpensive restaurant in the 1950s often brought a “hottle” (as in the linked photograph)of coffee or hot water nested perfectly in the familiar diner-style heavy white china hemispherical cup & saucer, usually with a paper or plastic lid. The arrangement delivered about two cups of coffee efficiently and allowed the patron to keep it hot.