(before the Reform Bill of 1832) any English borough whose representatives in Parliament were controlled by an individual or family.
an election district under the control of an individual, family, or group.
Origin of pocket borough
First recorded in 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for pocket borough
(before the Reform Act of 1832) an English borough constituency controlled by one person or family who owned the landCompare rotten borough
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012