Captain Fredricks: What part of "no" don't you understand, Strode? The "N" or the "O"?
Francesca 'Frankie' Sutton: I know you out of money by now, Cleo. Now what you going to do?
Cleo: Rob another goddamn bank! What the fuck is ya'll thinkin?
Cleo: Shit, we're ain't robbing stagecoaches, man! We need something to set it off with.
Francesca 'Frankie' Sutton: The only way we gonna see cash is if we take a bank.
Cleo: Now see I'm with that shit.
Lida 'Stony' Newsom: Ya'll ni**as done lost ya'll mind. We might as well not even tak about this shit no more.
Francesca 'Frankie' Sutton: Well I'm talkin' 'bout it. And ain't nobody gon' stop me from talkin bout it.
Lida 'Stony' Newsom: Well talk is cheap... ni**a.
Answer: Luther worked as the cleaner in the building where the girls hid the money in the air duct. He apparently just happened to come across it while cleaning. As to blowing through it, he may have been lying to them that it was all gone, but he had already bought some pretty expensive items. Something like a fancy sports car alone can cost $100,000 or more.
raywest