Source : Webster's Revised Unabridged Dictionary (1913)

Earthy \Earth"y\, a.
   1. Consisting of, or resembling, earth; terrene; earthlike;
      as, earthy matter.

            How pale she looks, And of an earthy cold! --Shak.

            All over earthy, like a piece of earth. --Tennyson.

   2. Of or pertaining to the earth or to, this world; earthly;
      terrestrial; carnal. [R.] ``Their earthy charge.''
      --Milton.

            The first man is of the earth, earthy; the second
            man is from heaven. As is the earthy, such are they
            also that are earthy.                 --1 Cor. xv.
                                                  47, 48 (Rev.
                                                  Ver. )

            Earthy spirits black and envious are. --Dryden.

   3. Gross; low; unrefined. ``Her earthy and abhorred
      commands.'' --Shak.

   4. (Min.) Without luster, or dull and roughish to the touch;
      as, an earthy fracture.

Source : WordNet®

earthy
     adj 1: 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" [syn: {coarse}, {crude}, {gross}, {vulgar}]
     2: not far removed from or suggestive of nature; "the earthy
        taste of warm milk fresh from the cow"; "earthy smells of
        new-mown grass"
     3: hearty and lusty; "an earthy enjoyment of life"
     4: sensible and practical; "has a straightforward down-to-earth
        approach to a problem"; "her earthy common sense" [syn: {down-to-earth}]
     [also: {earthiest}, {earthier}]