To react with consternation to someone or something that violates the usual norms.

To slip the clutch (of a manual transmission) excessively, such that its working life will be shortened; especially, to keep one's foot or hand on the clutch pedal or lever even when no slipping of the clutch is needed.

plural of Clutton

A village and civil parish (served by Coddington and District Parish Council) in Cheshire West and Chester, Cheshire, England (OS grid ref SJ4654).

plural of clutchback

A clutch, a fastener which goes over the end of a pin.