[ tuhm-buh l-buhg ]
/ ˈtʌm bəlˌbʌg /
any of several dung beetles that roll balls of dung in which they deposit their eggs and in which the young develop.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for tumblebug
It was only a tumblebug, but he shrank from putting foot on any living thing.Little Journeys to the Homes of the Great - Volume 14|Elbert Hubbard