Possible Clues:

• Members of a deadly pack
• Bummed things, briefly
• Coffin nails
• They come in a pack, briefly
• Purchases that are puffed, slangily
• Merit offering, for short
• "Smokes"
• Marlboros, e.g., for short
• 'Smokes'
• They were once bummed a lot, but now not so much