Green’s Dictionary of Slang

(S.Afr.) the Cape Peninsula; thus Shankender, an inhabitant of Cape Peninsula; also attrib.

1896		J. Cole Reminiscences 120: I also contributed to the the ‘Shank End Shindy,’ commemorative of a meeting held in Cape Town to condemn the proceeding of the Parliament .
1901		East Province Herald (S.Afr.) 20 Aug. n.p.: The Round House Hotel [...] a popular resort for Shankenders.
1913		C. Pettman Africanderisms 412: The Shank End A humorous name applied to the Cape Peninsula.