|
Definition of Cross the floor
1. Verb. (UK politics of a member of a parliament) To vote against one’s own political party in parliament. ¹
2. Verb. (UK informal politics of a member of a parliament) To resign from one’s political party and join another party, resulting in moving from one’s currently assigned desk or seat in the legislative chamber to a new desk or seat physically located with the other members of one’s new party. ¹
¹ Source: wiktionary.com