Definition of mungy in English:

mungy

(also mungi)

adjective

  • Originally and chiefly English regional. Of weather: muggy, close.

adjective

North American
informal
  • Unpleasantly messy, soiled, or dirty.

Origin

Mid 17th century (in an earlier sense). Origin unknown. Perhaps related to mug, mug, muggish, muggy<br>1980s. Probably from mung + -y.

Pronunciation

mungy

/ˈmʌn(d)ʒi/