Definition of gambo in US English:

gambo

(also gambow)

noun

English Regional, Herefordshire, Welsh English
  • 1A low, flat cart, typically two-wheeled and with the sides consisting only of poles, used for carrying hay, corn, etc., over fields or uneven ground.

  • 2Welsh English. In extended use: any rudimentary, makeshift, or dilapidated vehicle, e.g. a home-made go-cart, an old and decrepit car, etc.

Origin

Mid 19th century. Origin unknown.

Pronunciation

gambo

/ˈɡambəʊ/