OK . .
June Tabor's "Fair Maid of Islington" on Aleyn (?) - her most recent CD, anyway.
Of course June always reckons her reason for choosing another song was that it contains the line "She rose and shot her false willy . . ."
Still within June's repetoire there's "Flash Company" . .
And moving away a little there's "The bonny black hare", or slightly less explicit, "The Molecatcher".
Hell, the English tradition is full of them . . I recall the Oyster Band once introducing a song by saying "any line which isn't a double entendre is probably a triple entendre".
And going back a bit and away from folk, there's Dowland's "Man (is for the woman made)"
G.