Green’s Dictionary of Slang

Turnbull Street flea n.

a crab-louse.

c.1630

‘The Married Woman’s Case’ in Rollins Pepys Ballads (1929–32) II 171: A Woman that to a whore-monger is wed, / is in a most desperate case: / She scarce dares performe her duty in bed, / with one of condition so base: / For sometimes hee’s bitten / with Turnbull-street Fleas, / The Pox, or some other infectious disease.