Wiktionary
n. Alternative spelling of ''bumblebee''.
Wikipedia
Bumble-Bee is an informal term describing a New Zealand railway locomotive livery (resulting from the combination of black and yellow in the colour scheme) found in common usage amongst the railfan community.
The livery, first introduced in 2001 to promote level crossing safety, was initially trialled on Tranz Rail locomotive DC 4323 (photo), and over time was applied to numerous other locomotive classes up until the time that Toll introduced its own livery.
Only six DCs, one DSC and three EFs are still wearing this livery while in service.
Usage examples of "bumble-bee".
There were some of the people from the summer pictures, but there were also dromes and the headless horseman and the Bumble-Bee women.
All at once he saw a great bumble-bee fly out of one of the tulips.