Related Clues:

• Menace
• Greet with a 'grr'
• React nastily toward
• Say ''Grr'' to
• Threaten, dog-style
• Speak angrily to
• Greet like a junkyard dog
• Menace, in a way
• Menace with teeth exposed
• Warn, watchdog-style
• Threaten, canine-style
• Go ''Grr!'' to
• Greet with a "grr"
• Threaten like a mad dog