Definitions of earthy:

• adjective:   hearty and lusty

  Example: "An earthy enjoyment of life"

• adjective:   not far removed from or suggestive of nature

  Example: "The earthy taste of warm milk fresh from the cow"

• adjective:   sensible and practical

  Example: "Her earthy common sense"

• adjective:   conspicuously and tastelessly indecent

  Example: "An earthy sense of humor"