IPA: //ˈkræbiər//
KK: /ˈkræbiər/
More irritable or grumpy than usual.
After a long day at work, she felt crabbier than ever.
Crabbier is formed from "crabby" (from the adjective "crab" meaning irritable or grumpy, derived from the noun "crab" which refers to the crustacean known for its pincers and aggressive behavior) and the suffix "-ier" (meaning more). The word "crabbier" means more irritable or grumpy than usual.
Think of a crab, which is known for its pinch and grumpy demeanor, to remember that 'crabbier' means someone who is more irritable or grumpy.