crabby

adj

1. Relating to or resembling crabs; crablike.
2. Abounding with crabs.

   “As for animal life, this is the "Crabbiest Place in the World," where 20 land and intertidal crabs range from tiny beach dwellers to the chunky robber crabs that crack coconuts with their massive claws.”

3. Visibly irritated or annoyed; grouchy, irritable, in a foul mood; given to complaining or finding fault in an annoyed way.

   “"You're not crabby, are you?" "No, no, not at all. I think I'll go."”

4. Crabbed; difficult or perplexing.