has been knuckling
- present perfect progressive of knuckle (3rd person singular).
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The name of the island is true to myth, which suggests that someone at DC Comics has been knuckling down to Herodotus and the Greek tragedians.
From The New Yorker • Jun. 5, 2017
