tub

1. (nautical, informal) A slow-moving craft.Examples: "But, with any ships in the Baltic Fleet that were worth sending - and some that probably weren't worth sending anyway - having already been dispatched, this gave him the perfect excuse to start rounding up old, obsolete vessels which had been rejected in the first place as being old tubs and designated by some of the less-kind officers as the "Sink-by-Themselves Squadron"."informal

2. (humorous or derogatory) Any structure shaped like a tub, such as a certain old form of pulpit, a short broad boat, etc.Examples: "All being took up and busied, some in pulpits and some in tubs, in the grand work of preaching and holding forth."derogatoryhumorous

3. (mining) A box or bucket in which coal or ore is sent up a shaft.

4. (obsolete) A sweating in a tub; a tub fast.Examples: "tubs and baths; bring down rose-cheeked youth To the tub-fast and the diet"obsolete

5. (slang) A corpulent or obese person.Examples: "Donald tells him to be more realistic. Take those two girls over there, for example. One's a zitface and the other's a tub, so they'd be perfect for them."slang

6. (automotive) The bare body shell of an automobile (minus the doors, hood, trunk lid, fenders, etc.) which is lowered onto the chassis at the time of assembly, or in the case of modern unibody designed vehicles, is itself a monocoque around which the rest of the vehicle is built.Examples: "Every street or race car McLaren has built since 1981 uses a carbon fiber tub. Now, McLaren will make them in-house."