Meaning

noun blockage consisting of an object designed to fill a hole tightly

noun a wad of something chewable as tobacco

noun blatant or sensational promotion

originFrom Dutch plug, from Middle Dutch plugge (“peg, plug”), from Old Dutch *pluggi, from Proto-West Germanic *plugi. Further origin unknown. Possibly from Proto-Germanic *plugjaz, but the word seems originally restricted to northern continental West Germanic. Perhaps ultimately from the same source as Dutch plag (“cut-out sod”), itself considered to be from a substrate. Compare German Low German…

Etymology from Wiktionary, CC BY-SA 3.0