Green’s Dictionary of Slang

urine standing in a chamberpot.

1577		B. Googe Heresbach’s Husb. III. (1586) 135b: Take Chamberly, and Salte, and seeth them to gether, and washe the places where the skinne is cut of.
c.1597		Shakespeare Henry IV Pt 1 II i: Your chamber-lie breeds fleas like a loach.
1664		C. Cotton Virgil Travestie (1765) Bk I 51: For know that she / Still wash’d her Hands in Chamber-lee.
1690		‘Teague’ Teagueland Jests I 98: She threw a full Pot of Chamber-lee upon him.
1699		N. Ward London Spy III 65: We peep’d into another Room, which smelt as strong of Chamber-Lie as a Bottle of Sal Ammoniac.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.
1859		Matsell Vocabulum.
1864		Confederate Army notice, Montgomery (AL) in Randolph & Legman Ozark Folksongs and Folklore (1992) II 659: The ladies of Montgomery are respectfully requested to save all the chamber lye that accumulates on their premises [etc.].
1949		Monteleone Criminal Sl. (rev. edn).
2000		S. Harvey Bound for Shady Grove 51: Fill up the gallon glass jug with chamber-lye from your bed pot.