Possible Clues:

• Kitchen storage brand
• Food storage containers (for those who gave parties?)
• Containers that "burp" when sealed
• Kitchen containers that ''burp''
• Boxes for food or water spiked with drug in
• Put a lid on it!
• Collective elements of a party elite fighting to infiltrate extremists in tribe
• Put up spread, rewrap sandwich — last piece of cheese in this?
• It may be pushed at a party
• Burpable containers