slough (plural sloughs) 1  The skin shed by a snake or other reptile. That is the slough of a rattler; we must be careful. 2  Dead skin on a sore or ulcer. This is the slough that came off of his skin after the burn.
The name Groupon is a combination of the words group and coupon, which references the company's viral marketing business model.
More About Groupon Coupons, Sales & Deals: DealCatcher has been keeping track of Groupon coupons & offers since November 2010. During the month of April 2016 alone, they offered customers savings up to an additional 40% off local deals and 25% off Getaways.