clag
noun
[ klaɡ ]
• sticky mud or dirt.
• "that weird clag that fills your back yards and covers your roads"
• fog, mist, or low-level cloud.
• "I was in thick clag and rain by now"
Origin:
late 15th century (as a verb meaning ‘daub or clot with sticky matter’): perhaps of Scandinavian origin and related to clay. clag (sense 2) dates from the 1940s.
