1 (also Colonel Blimp)British a pompous, reactionary type of person:you’ll still find Colonel Blimps at local party level
2a small airship or barrage balloon.
North American a fat person:I could work out four hours a day and still end up a blimp
3a soundproof cover for a cine camera.
First World War(in blimp (sense 2)): of uncertain origin. blimp (sense 1) derives from the character invented by cartoonist David Low, used in anti-German or anti-government drawings before and during the Second World War