noun

• (engineering) An overheated shaft bearing.
  "If a hotbox is not discovered early, the temperature of the journal or bearing may rise to a critical level, so that the wheel end of the journal may burn off and cause a derailment of the car."
• (engineering) An overheated shaft bearing.
  "One of the ex-L. & Y.R. "pugs" displaced by diesels at Bank Hall, No. 51232, is going to Preston for employment on the dock lines there, but when en route on December 31 it ran out of water and also sustained a hot box, as a result of which it was detained at Bank Hall."
• (slang) A sexy woman.
  "They drove on with comments about "redskin hotboxes who didn't wear any pants at all," and kept calling me "chief" in a sneering manner."
• (graphical user interface) A context-sensitive dialog that duplicates many of the commands on the menu for users of the Maya Embedded Language.
  "While you can do everything you wish in Maya without ever using the hotbox, once you get used to the way the hotbox conserves space and puts nearly all of Maya's tools in easy reach, you'll wonder how you ever got along without it ."

verb

• (transitive, slang) To smoke marijuana in a small confined area, such as the inside of a car, until it is full of smoke, thereby intensifying the drug's effects.
  "Jane hotboxed the tent earlier."
• (slang) To put out a cigarette just before entering a vehicle, then expel smoke in the vehicle.
• (slang) To smoke a cigarette vigorously and rapidly.
• (slang) To fart in a small confined area, such as the inside of a car.