In vain the workman showed his wit
With rings and hinges counterfeit
To make it seem in this disguise
A cabinet to vulgar eyes;
The chamber pot is cleverly disguised as a cabinet. Too cleverly for Strephon, who pretty much gets what he deserves for poking his nose into it.
To help improve the meaning of these lyrics, visit "The Lady's Dressing Room" by Jonathan Swift and leave a comment on the lyrics box