The triple talaq is a mechanism for divorce which exists in some forms of Islam. It simply consists of the husband saying the phrase I divorce you (Arabic:talaq) to the wife, three times.
The "triple talaq" is not as simple as just saying "talaq, talaq, talaq". First, it is generally condemned. Second, there must be a month between each "talaq", so the whole procedure takes up at least two months. For more info, see http://www.religioustolerance.org/mohd.htm
http://en.wikipedia.org/wiki/Triple_talaq
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