Definition of putt-putt in English:

putt-putt

(also put-put)

noun

  • The rapid intermittent sound of a small gasoline engine.

    ‘she heard the putt-putt of a boat coming toward them’
    • ‘She doesn't hear the putt-putt of the moped as it approaches.’
    • ‘Elsewhere, the delightful putt-putt sounds of fishing traffic off Vancouver Island sidle up alongside the Pärt and Ligeti and early Floyd influences.’
    • ‘For such a big machine, it made an incredibly gentle noise, the calming putt-putt of an outboard engine on a small boat.’

verb

[NO OBJECT]
  • Make a rapid intermittent sound.

    ‘the machine gun putt-putted behind me’
    • ‘It started to sputter and putt-putt and just as I reached my friends' garage door, it died.’
    • ‘They were plunging feet-first toward a little motorboat putt-putting across the ocean.’

Origin

Early 20th century: imitative.

Pronunciation:

putt-putt

/ˈpətˌpət/