Related Clues:

• Really riled
• Red in the face, maybe
• Fixing to fight
• Having steam come out the ears, say
• Hoppin' mad
• Adjective from which John McCain hopes to disassociate himself
• Racked with wrath
• Extremely upset
• Not just annoyed
• Close to erupting
• Spitting mad
• Really ticked
• Out-of-sorts
• Fuming mad
• In a tiff