Be a grind?
Else clues• Bite like T-Rex
• Champ
• Engage canines?
• Engage one's teeth in bruxism
• Exercise your canines
• Exhibit frustration dentally
• Grind
• Grind (as teeth)
• Grind (one's teeth)
• Grind (teeth)
• Grind (the teeth)
• Grind grinders
• Grind one's teeth in frustration
• Grind together
• Grind together, as one's teeth
• Grind together, as teeth
• Grind, as one's teeth
• Grind, as the teeth
• Grind, dentally
• Grind, like teeth
• Grind, to the grinders
• Mash the molars
• Name of the saber-toothed mascot of the NHL's Predators
• Rub together
• Show frustration dentally