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motser

American  
[mot-ser] / ˈmɒt sər /
Also motza or motzer

noun

Australian Slang.
  1. a large amount of money, especially a sum won in gambling.


motser British  
/ ˈmɒtsə /

noun

  1. informal a large sum of money, esp a gambling win

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of motser

1940–45; perhaps alteration of Polari medzers, medzies, metzes money, plural of medzer, madzer halfpenny, ultimately < Italian mezzo half, mezzo