"Chewing tobacco (also known colloquially as chew, chaw, chewpoos, chits, chewsky, chawsky, dip, flab, chowers, guy, or a wad, as well as referred to as dipsky, snuff, a pinch or packing a lip (when confused with dipping tobacco)) is a type of smokeless tobacco product consumed by placing a portion of the tobacco between the cheek and gum or teeth and chewing. Unlike dipping tobacco, it is not ground and must be mechanically crushed with the teeth to release flavor and nicotine. Unwanted juices are then expectorated.
Chewing tobacco is typically manufactured as several varieties of product – most often as loose leaf (or scrap), pellets (tobacco "bites" or "bits"), and "plug" (a form of loose leaf tobacco condensed with a binding sweetener). Nearly all modern chewing tobaccos are produced via a process of leaf curing, cutting, fermentation and processing or sweetening. Historically, many American chewing tobacco brands (which were popular during the American Civil War era) were made with cigar clippings.
Chewing is one of the oldest methods of consuming tobacco. Native Americans in both North and South America chewed the leaves of the plant, frequently mixed with the mineral lime. Chewing tobacco was the most prevalent form of tobacco use in the United States until it was overtaken by cigarette smoking in the early 20th century." via WIKI
