blimp

Concise Oxford English Dictionary © 2008 Oxford University Press:
blimp/blɪmp/

▶noun informal

• 1 (also Colonel Blimp) Brit. a pompous, reactionary person.

• 2 a small airship or barrage balloon.

• 3 N. Amer. an obese person.

• 4 a soundproof cover for a film camera.

– derivatives
blimpish adjective.

– origin First World War (in sense 2); sense 1 derives from a character invented by the cartoonist David Low.