noun
potluck; bring-and-share
Refers to an event where each participant brings food or drink to share. Often used in compounds like 持ち寄りパーティー.
今日の持ち寄りパーティーには、みんな手料理を持ってきた。
Everyone brought homemade dishes to today's potluck party.
持ち寄りの品はテーブルに並べてください。
Please place the items you brought on the table.
Loanword from English 'potluck', used similarly but 持ち寄り is the native Japanese term and more common in everyday contexts.
Compound of 持ち (mochi, 'bringing', from 持つ) and 寄り (yori, 'gathering', from 寄る). Literally 'bring and gather'.