plastax
n.— «He said there was evidence in Ireland that the “plastax,” as it is known, has led to a 90 per cent reduction in plastic-bag use, significantly benefiting landfill sites, where the bags take up to 100 years to break down.» —“Bid to bag new tax from shoppers” by James Reynolds Scotsman (Glasgow, Scotland) June 21, 2005. (source: Double-Tongued Dictionary)