1) Seat 
[comic strip] Backbench is a panel cartoon appearing in The Globe and Mail. The strip is written and drawn by Graham Harrop. It consists of multiple- and single-panel jokes, generally drawn from and satirizing Canadian politics. Graham Harrop also has an editorial cartoon in the Vancouver Sun three days a weeks as well as publishing books a...
[n] - any of the seats occupied by backbenchers in the House of Commons of Great Britain
noun any of the seats occupied by backbenchers in the House of Commons