Related Clues:

• Tiptoe
• Move like an insect
• Hands-and-knees movement
• Eddie Haskell, to Beaver
• Barely move
• Advance slowly
• Butterfly relative
• Swimmer's stroke
• Move surreptitiously
• Advance stealthily
• Sleazeball
• Odious one
• __ space
• Unlikely candidate for Mr. Right
• Disturbing company