Definition of "tub"

Teach me to love my morning tub, / In waters cold to splash and rub; / O, grant my Turkish towel may flood / Its virtues through my soul and blood.

1920, Theodore Sharpe, My Place in the Shade: And Various Verse, page 27

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".

2019 March 13, Drachinifel, 24:52 from the start, in The Russian 2nd Pacific Squadron - Voyage of the Damned‎, archived from the original on 15 October 2022

All being took up and busied, some in pulpits and some in tubs, in the grand work of preaching and holding forth.

1692–1717, Robert South, Twelve Sermons Preached upon Several Occasions, 6th edition, volumes (please specify |volume=I to VI), London: […] J[ames] Bettenham, for Jonah Bowyer, […], published 1727

tubs and baths; bring down rose-cheeked youth To the tub-fast and the diet

c. 1605–1608, William Shakespeare, “The Life of Tymon of Athens”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act IV, scene iii]

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.

2003, Trey Ellis, Platitudes: & the New Black Aesthetic, page 139

Don't we all "tub" in England?

February 1, 1873, Meredith Townsend and Richard Holt Hutton (editors), "Change of Air and Scene", in The Spectator