Related Clues:

• Stubborn critters
• Boneheads
• Lamebrains
• Equines that bray
• Dim bulbs
• Epitomes of stubbornness
• Putdown of those with whom one disagrees
• Braying beasts
• Dimwits
• Long-eared equines
• Mules, hinnies and such
• Hinny and ninny, e.g.
• Cart pullers
• Mules
• Some equines