Answer: tupperware

AnswerCrossword Clue
TUPPERWAREVessels for leftovers
TUPPERWAREKind of party
TUPPERWAREBurpable containers
TUPPERWAREIt may be pushed at a party
TUPPERWARENeighborhood party type
TUPPERWAREPut a lid on it!