Green’s Dictionary of Slang

mac-and-fuppence n.

[mac n. + fippence n.]
(W.I.)

one shilling and three pence (post-1969 value 15 cents).

Show quotations
[WI]W. Jekyll Jam. Song and Story 182: 8 quatties 1 shilling or maccaroni. 10 quatties mac-o-fuppence.