English edit

Etymology edit

Probably a blend of bleck +‎ blatch.

Verb edit

bletch (third-person singular simple present bletches, present participle bletching, simple past and past participle bletched)

  1. (transitive, dialectal) To blacken; to dirty or soil.

Noun edit

bletch (plural bletches)

  1. (dialectal) Anything that has been blackened or dirtied.