Definition of balloonatic in English:

balloonatic

(also ballunatic)

noun

military slang
  • A person who is balloon-mad; a balloonist, specifically (Military slang) a member of a balloon corps or balloon squadron in the First World War (1914–18).

adjective

  • Balloon-mad, balloon-crazy.

Origin

Mid 19th century; earliest use found in Alton (Illinois) Weekly Courier. Blend of balloon and lunatic.

Pronunciation

balloonatic

/bəˈluːnətɪk/