1. overspill - Noun
2. overspill - Verb
the occurrence of surplus liquid (as water) exceeding the limit or capacity
the relocation of people from overcrowded cities; they are accommodated in new houses or apartments in smaller towns
Source: WordNetDesignated a New Town in 1967, Peterborough Development Corporation was formed in partnership with the city and county councils to house London's overspill population in new townships sited around the existing urban area. Source: Internet
In Northampton the older accent has been influenced by overspill Londoners. Source: Internet
Police spokesperson Elizabeth Kanjela named those arrested as Samuel Muyunda aged 38 of Kuomboka Chawama, Visto Chinyimba aged 44 of Chipata Overspill, Bonnet Kaluya aged 52 of Jack Compound as well as 39 year old Emelda Bwalya of Matero compound. Source: Internet