IPA: /ˈkræbɪli/
KK: /ˈkræbɪli/
In a way that shows annoyance or irritability.
She crabbily refused to help with the project.
Crabbily is formed from "crabby" (from the dialectal form of "crab" meaning irritable or grumpy) and the suffix "-ly" (meaning in a manner of). The word describes behaving in an irritable or grumpy manner.
Think of someone acting like a 'crab' — crabs are often seen as grumpy creatures, and the '-ly' shows how they are behaving.