Cashish is a term used to describe physical money (ie. cash) that is used for frivolous purposed. Paper money that figuratively is burned up.
"How much cashish was that hotdog?"

"I dunno, pass the hashish"
by zzzebralynx September 10, 2011
1) A great deal of cash
2) Cash referenced as if it were as powerful as a drug
1) Max: "Are you going to work on Saturday?"
Scott: "Of course dude, there is a serious amount of cashish to be made with overtime!!"

2) Max: "I need some cashish to buy the wife her new boob job."
Scott: "Is that REALLY necessary, I mean is she that materialistic that she needs balloons in her chest?"
Max: "Yes, and so am I!"
Scott: "Excellent"
by psiscott April 28, 2006

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