definition of
vulgar

[1] #1 vulgar s. [common, vernacular] being or characteristic of or appropriate to everyday language; "common parlance"; "a vernacular term"; "vernacular speakers"; "the vulgar tongue of the masses"; "the technical and vulgar names for an animal species". wn

[2] #2 vulgar s. [crude, earthy, gross] conspicuously and tastelessly indecent; "coarse language"; "a crude joke"; "crude behavior"; "an earthy sense of humor"; "a revoltingly gross expletive"; "a vulgar gesture"; "full of language so vulgar it should have been edited". wn