[prior use is SE, Lat. membrum virile, ‘the virile member’, i.e. the penis]
[18C+] the penis.
[late 17C–early 19C] a chamberpot.
[19C] the flaccid penis, esp. when afflicted with (temporary) impotence or with venereal disease.
see separate entry.
[19C] the penis.
member for cockshire
[puns on SE member and Cock(shire)/cock n.3 (1)]
[mid-19C] the penis.
member for horncastle
[punning on SE member + horn n.1 ; thus double entendre in D’Urfey, Pills to Purge Melancholy (1719): ‘I am a cunning Constable, / And a Bag of Warrants I have here, / To Press sufficient Men and able, / At Horn-castle to appear / [...] / Where I miss the Man I’ll press the Wife’]
[late 18C–early 19C] a cuckold.
[play on usu. sense of tongue, from General Epistle of James, 3:5–8: ‘Even so the tongue is a little member [...] But the tongue can no man tame; it is an unruly evil, full of deadly poison’]
[late 17C-19C] the penis.
[mid-19C] the tongue.
SE in slang uses
member of the catch club
[they catch villains]
[late 18C–early 19C] a bailiff or bailiff’s assistant.