Related Clues:

• Smallest of the pups
• Littlest in the litter
• Littlest littermate
• Not the pick of the litter
• Weakling
• Weakest of the litter
• Cull candidate
• Bullied baby, maybe
• Little one, to a bully
• Litter's smallest
• Puny pup
• Puny puppy
• Small, contemptible one
• Little sucker?
• Litter castoff, often