The Thing-Ummy Bob
"The Thing-ummy-Bob " is a 1942 song, written by Barbara Gordon and Basil Thomas with music by David Heneker, which celebrates the female production-line workers of World War II making components for complex weapons to win the war. Its chorus is
A thingumabob or thingummy is an extended form of the word thing which the Oxford English Dictionary records being used as far back as 1751.
The song was popularized by performers Arthur Askey and Gracie Fields.