Definition:
To become angry, agitated or upset.
Use case:
You can use the slang "riled up" to describe when someone is getting angry or upset about something. For example, "The customer service representative was rude and it really riled me up."
• The dog next door always riles up my own dog with its incessant barking.
• Don't get riled up over something so trivial - it's not worth getting worked up about.
• I try to avoid watching the news before bed because it always riles me up and makes it hard to fall asleep.
• The CEO's decision to lay off half the workforce has understandably riled up the employees, who feel betrayed and undervalued.
• My sister always manages to rile up our parents by pushing their buttons and getting under their skin.
• The politician's inflammatory remarks riled up the crowd, leading to a heated exchange of words between opposing groups.