a tax levied on cigarettes, liquor, gambling, or other things considered neither luxuries nor necessities.
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Origin of sin tax
First recorded in 1970–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for sin tax
You may try high-tax and low-tax but all the time you will have sin-tax and more sin than tax.
British Dictionary definitions for sin tax
informal a tax levied on something that is considered morally or medically harmful, such as alcohol or tobacco
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012