noun

• (aviation) An airship constructed with a non-rigid lifting agent container.
  "2004 February 16&23, The New Yorker"
• (by extension) Any large airborne inflatable.
  "a 6 meter high blimp made by a professional inflatables company, to be flown in the skies"
• (slang) An obese person.
• (film, television) A soundproof cover for a video camera.
  "You can create your own blimp or barney with anything that will deaden the camera noise, such as a changing bag, foam rubber, […]"

verb

• (slang, intransitive) To expand like a blimp or balloon; to become fat.
  "After college, she started blimping and could no longer wear her favorite little black dress."
• (transitive) To fit (a video camera) with a soundproof cover.

noun

• (humorous) A person considered similar to Colonel Blimp in appearance, thought, or expression, particularly (historical or archaic, derogatory) a reactionary middle-class Englishman during the Interwar Period.
  "One was the military and imperialist middle class, generally nicknamed the Blimps, and the other the left-wing intelligentsia."