Green’s Dictionary of Slang

oulap n.

also ollap
[Afk. ou, old + lap, rag, thus a valueless old rag]

(S.Afr.) a penny.

[SA]C. Pettman Africanderisms 354: Sixpenny bits were a rarity, and the penny or oulap was a practically useless coin.
P.W. Laidler Tavern of Ocean 143: The only coin in use was the English penny, and, as it passed for twopence, it was known as a ‘dubbeltje’. To-day its name is an ‘ou lap’, a worthless old rag [DSAE].
L.G. Green Tavern of Seas 14: Some [...] coloured phrase-maker early last century fixed the penny forever as an ‘ou lap’ — valueless old rag [DSAE].
[SA]Cape Times 14 May [cartoon caption] No more penny, no more ollap, no more stuiwer and jus’ now no tickey. Jislike! The old Cape tradition is taking a beating [DSAE].
[SA] informant in DSAE (1996).
Leviseur & Schoeman Memories 55: [...] and for many years we knew nothing of pennies, though in the Cape they had the ‘oulap’.
(con. 1900s) W.A. & A.S. Kerkham Forgotten Times 52: [The penny] was often called an ‘oulap’ by the Coloured people, a word understood only in the Western Cape.