Meaning of clart in English:

clart

(also clarts)

Pronunciation /klɑːt/

noun

mass nounScottish, Northern English
  • Sticky mud; filth.

    • ‘Now where I come from these types would be called ‘happy as a pig in clarts’.’
    mud, muck, mire, ooze, silt, alluvium, dirt, slime, slush, slurry

Origin

Late 17th century (as a verb in the sense ‘smear, plaster’): of unknown origin.