Sarsaparilla

A person that does not drink alcoholic beverages.

Bill: Hey, it's beer O'clock and I'm knackered. Lets go get a drink.
Jim: Sorry mate, I don't drink.
Bill: OK, maybe next time.

... later
Bill: Hey Bruce, that new bloke at work.. Jim .. did you know he is a sarsaparilla?
Bruce: Really? Man, that is so weak.

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