Homonym: Grouch (Grump)
A "grouch" is a person who is often irritable or grumpy. They may complain frequently and seem unhappy, which can affect their interactions with others. Grouches might express their displeasure through negative comments or a sour demeanor, making it challenging for them to enjoy social situations.
The term is commonly associated with characters like Oscar the Grouch from the children's television show Sesame Street. Oscar is known for his love of trash and his grumpy attitude, which adds humor to the show while also teaching children about different emotions and social interactions.