Definition of tumblebug in English:

tumblebug

noun

North american
  • A dung beetle that rolls balls of dung along the ground.

    • ‘I had always been deceived when I attempted to judge the weight of the tumblebug by his size.’
    • ‘Upon doing the research for my report, I learned that the sacred scarab beetle was actually a tumblebug.’

Pronunciation:

tumblebug

/ˈtʌmb(ə)lbʌɡ/