Colchester|ˈkəʊltʃɛstə(r)| A town of England, in Essex, famous for its oysters, called shortly Colchesters or Colchester natives. c1625MS. Bodl. 30 fol. 14 a, They [oysters] past for good plump colchesters.1840Hood Kilmansegg xv, Like Colchester native, born To its vinegar, only, and pepper.