(US) A small gift given to a guest at a party, as a souvenir. / (informal, euphemistic) A narcotic, particularly an amphetamine, to be shared at a gathering.

A cylindrical blowing device that consists of a mouthpiece, which may or may not be a whistle, attached to a coiled tube of paper, given to guests and used at large celebrations especially New Year's Eve, or birthdays. When the mouthpiece is blown into, the paper tube unravels and a humorous festive noise is produced.

(Australia) A small meat pie intended as a party snack.

plural of party bag

(US, dated) A social excursion party that sojourns several days on the shore or in some retired place; a prolonged picnic.

One who parties heavily.

plural of party pie

(colloquial) A faux pas committed at a party.

garden party

A group of entertainers, or Pierrots, popular in Britain during the first half of the 20th century / a group of people acting in concert in a takeover bid