What is Dum-digi-digi-digi-di-dum-dum--dum-digy-digy-di-dumdum?
An annoying line in a silly song which you find yourself continually humming/singing/yelling at inappropriate times
"I'd be dum-digi-digi-digi-di-dum-dum--dum-digy-digy-di-dumdum.....oh i'm in a meeting and being an arse!"