crabby

Short definition from Wiktionary

Adjective

1. 1
   Relating to or resembling crabs; crablike.
2. 2
   Abounding with crabs.
3. 3
   Visibly irritated or annoyed; grouchy, irritable, in a foul mood; given to complaining or finding fault in an annoyed way.
4. 4
   Crabbed; difficult or perplexing.