hotbox

1 9.9

An overheated wheel bearing on a train car caused by lack of oil

noun
/ˈhɑtˌbɑks/

Specialized

: sobrecalentamiento

The train had to stop because the hotbox on the freight car was overheating due to lack of lubrication.

Examples

During the inspection, the crew discovered a hotbox that needed immediate maintenance to prevent an accident.
The engineer reported a severe hotbox which could risk the safety of the entire rail line.
Got a hotbox down there?

Little (2019)
It's the hotbox for you, buddy.

Death Collector (1988)
Warden's wondering if your stay in the hotbox has changed your mind.

The Longest Yard (2005)
That's a week in the hotbox!

The Longest Yard (2005)
Hotbox, that's what the fuck I'm gonna do.

Beast Mode (2020)
It's a fucking hotbox.

American Sniper (2014)
The hotbox.

The Big Doll House (1971)
The class privilege is as dank as a high school lav hotbox.

Blog text (2)

Surface Forms

hotbox singular

hotboxes plural

Morphology

hotbox = hot + box (semi-transparent) = hot + box

Formally a compound of 'hot' + 'box' so components are clear, but the sense is a specialized technical term for an overheated journal bearing rather than a literal heated container.

Etymology

Hotbox comes from the simple parts hot and box; it named the box around the part that lets a train wheel turn when that part became very 'hot' from lack of oil. So a hotbox today means the overheated part or its box, which can damage or stop a train.