1706rats-tail hair [see sense 2a]. 1864 2 July 2/2 Goblin Child with the rat's-tail hair.
1959 14 Oct. 4 Miss Noelle Middleton, hitherto disguised under rat's tail hair and shaved eyebrows, was suddenly transformed.
2007 (Nexis) 12 May 44 The raunchy singer..in her skimpy, fleshcoloured mini-dress and rats' tail hair.