madza caroon

A corruption of the Sabir and Italian mezzo corona (“half-crown”).

madza caroon (plural madza caroons)

1. (UK, obsolete slang) A half-crown coin; its value, 30 pence.
   • 1859, J.C. Hotten, A Dictionary of Modern Slang, Cant, and Vulgar Words:

     Half-a-crown is known as an alderman, half a bull, half a tusheroon, and a madza caroon; whilst a crown piece, or five shillings, may be called either a bull, or a caroon, or a cartwheel, or a coachwheel, or a thick-un, or a tusheroon.