Grime

Noun
grime (uncountable)


 * 1) Dirt, grease, soot, etc. that is ingrained and difficult to remove.
 * 2)  A genre of urban music that emerged in London, England, in the early 2000s, primarily a development of UK garage, dancehall, and hip hop.

Verb

 * 1) To begrime; to cake with dirt

Thesaurus
begrime, bemire, bemud, besmoke, besoil, dirt, dirty, dirty up, dust, filth, foul, mire, muck, muck up, mud, muddy, scum, slime, smirch, smoke, smooch, smudge, smut, soot, tarnish