Adult Money

The disposable income that having a stable job brings as an adult, in contrast to depending on your parents/guardians for financial support.

"Why so much He-Man stuff?"
"Oh, I loved the franchise as a kid, but never got to have any of the toys. Thanks to my adult money, I can finally channel my inner child."
"That's dope."

Adulting for money

Having to do grown up things like work a steady job to earn money to pay bills and break even every month because you were not born/ married into millions.

I'd love to visit Ireland someday, but I'm currently adulting for money.