blimp

Short definition from Wiktionary

Noun

1. 1
   An airship constructed with a non-rigid lifting agent container.
2. 2
   Any large airborne inflatable.
3. 3
   An obese person.
4. 4
   A person similar to the cartoon character Colonel Blimp; a pompous, reactionary British man.
5. 5
   A soundproof cover for a video camera.
6. 6
   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.

Verb

1. 1
   To expand like a blimp or balloon; to become fat.
2. 2
   To fit (a video camera) with a soundproof cover.