bump-in noun2 •(Australia) The process of moving sets and equipment into an event venue, such as a theatre or conference centre, and setting it up ready for the event or performance. •An instance of bumping into someone (meeting them by chance).Some clients are just too busy, and it is best to get a sense of how things are going from them during informal elevator bump-ins, collegial chatter before grand rounds, or morning report. — 2020 formsbump-ins