Crossword Genius

Grouchy people (5)

Ross

I believe the answer is:

crabs

(Another definition for crabs that I've seen is " Marine crustaceans".)

I've seen this clue in the USA Today.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.