spillover
🇺🇸
/ˈspɪləʊvər/
🇬🇧
/ˈspɪləʊvə(r)/
Extra stuff that doesn't fit in one place and goes to another place.
The party was so big that there was a spillover of guests into the garden.
The extra effects or results of something that spread to other situations or places.
The popularity of the new restaurant caused a spillover of customers to the nearby shops.