Possible Clues:

• 'This makes my blood boil!'
• 'Grrrr!'
• Exclamation of infuriation
• [Grrr!]
• 'Grr . . .'
• 'Now you've done it!'
• "Now you've done it!"
• What a red-faced emoji might mean
• ''Harrumph!''
• ''That really frosts me!''