"It's a ticklish sort of job making a thing for a thing-ummy-bob, Especially when you don't know what it's for.
And it's the girl that makes the thing that holds the oil that oils the ringThat makes the thing-ummy-bob that's going win the war.
"The Thing-ummy-Bob [That's Going To Win The War]" 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.
[1] Its chorus is I'm the girl that makes the thingThat drills the hole that holds the ringThat drives the rod that turns the knobThat works the thing-ummy-bobA thingumabob or thingummy is an extended form of the word thing which the Oxford English Dictionary records being used as far back as 1751.
[2] The song was popularized by performers Arthur Askey and Gracie Fields.