Related Clues:

• No-good sort
• Boor
• Dirty rat
• Vermin
• Good-for-nothing
• Loathsome one
• Unsavory character
• Blackguard
• Pest
• Real heel
• Parasitic insect
• It might make you a nit-picker
• Despicable sort
• Wingless insect
• Despicable person