The only other time I can think of the term
‘Suffragette’ being used in popular music was about 40 years ago, when Paul McCartney sang his song ‘Jet!”
Last sentence of the first verse went:
“And Jet, I thought the major was a lady suffragette!”
Even then, very few thought about what it meant.
Most likely, no meaning. Just a good rhyme with ‘Jet’.
Bowie did “Suffragette City” back in the ‘70’s - working it’s way up to the lyric ‘Wham, Bam, thank you, Mam’ , if I recall correctly.