Related Clues:

• Barely make headway
• Move like a baby
• Words moving along the bottom of a TV screen
• Go slowly
• Move on all fours
• Go on all fours
• Hands-and-knees movement
• Butterfly relative
• Swimmer's stroke
• Overflow (with)
• __ space
• Slow pace
• Move on hands and knees
• Exist in large quantities
• Be overflowing