Cách sử dụng
The word 'grouch' means a person who is always unhappy, grumpy, and complains a lot. You can use this word when you want to describe someone who is difficult to be around because of their bad mood. For example, you can say "My boss is such a grouch today, he's been complaining about everything." or "My grandmother is a bit of a grouch in the morning, so I try not to bother her too much." It's not a very polite word, so make sure you use it only when necessary and with caution.