1. [early 19C+] a roll of money; by ext, a quantity of money, a payment.
2. money in general; thus wadded, possessing a good deal of money.
3. [late 19C-1930s] a drink of alcohol.
4. [late 19C+] (Aus./US) a large quantity of a commodity.
5. [1910s+] (orig. milit.) food, esp. a bun, cake or sandwich. In all cases its filling qualities are more important than taste etc; thus char and wads, tea and buns .
6. [2000s] (drugs) a bag of tobacco or marijuana.
[1910s–30s] a teetotaller.
[1940s+] (US) to spend all one’s money.
[1960s] (US) to suffer whatever is worst.
[1900s] (US) a wealthy individual.
[20C+] (Aus./US) an exceptionally impressive roll of cash.