noun Railroads.
a journal box overheated by excessive friction of an axle as a result of inadequate lubrication or the presence of foreign matter.
Also, hot box.

1835–45; hot + box1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Slang Dictionary

hotbox definition

  1. tv.
    to fill a small area with marijuana smoke. : He “hotboxed” the closet and they both sat there and drifted.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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Example sentences
Standard test method for measuring the steady state thermal transmittance of fenestration systems using hotbox methods.
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