hairball
/ˈheɪrbɔːl/Definitions
1. noun
A mass of swallowed hair that has accumulated in a cat’s stomach and is vomited up.
“The veterinarian told us that our cat had a hairball and needed to be given a special medication to help it pass through its system.”
2. verb
To cough up a mass of swallowed hair, typically as a symptom of a cat’s illness or discomfort.
“The cat was hairballing all over the carpet, and we had to clean up the mess immediately.”