Meaning of crotchety

1. My grandfather can be quite crotchety when he hasn't had his morning coffee.
2. The crotchety old man next door yelled at us for playing music too loud.
3. The crotchety old teacher always seemed to have a scowl on her face.
4. He became increasingly crotchety as he got older, refusing to adapt to new technology.
5. The crotchety old lady at the grocery store complained about every little thing.
6. Despite his crotchety demeanor, he had a soft spot for animals.
7. The crotchety old landlord was always grumbling about something.
8. She tried to be patient with her crotchety neighbor, even when he was rude to her.
9. The crotchety professor was known for his sharp tongue and sarcastic remarks.
10. The crotchety old man had a heart of gold underneath his gruff exterior.