adjective, coal·i·er, coal·i·est. of, resembling, or containing coal.

What does the word Coley mean?

English (West Midlands): nickname for a swarthy person, from Old English colig 'dark', 'black' (a derivative of col '(char)coal'). English: possibly a habitational name from Coaley in Gloucestershire, named in Old English as 'woodland clearing (leah) with a hut or shelter (cofa)'.

What is a Coalie?

(Entry 1 of 2) : covered or impregnated with coal : containing or resembling coal coaly shale.