verb
- complaining in a bad-tempered way
Usage: present participle of grump; informal
Examples
- He’s been grumping about the weather all morning.
- Stop grumping and help me with this project.
- She was grumping under her breath during the meeting.
- The kids were grumping about having to clean their rooms.
- Instead of grumping, why don’t you suggest a solution?
- My grandfather is always grumping about modern technology.