Top Definition
The law of cause and effect as it applies to giving and receiving cigarettes to/from strangers without accepting payment. The act of giving a cigarette without payment karmically ensures you will also get a cigarette when you are in need, also for no payment.
Man: "Excuse me, may I buy a cigarette from you?"
Woman: "You can just have one."
Man: "Thanks! That's good smoker's karma."
by benjifranklinthe9th January 02, 2011

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