Adulting (v): to carry out one or more of the duties and responsibilities expected of fully developed individuals (paying off that credit card debt, settling beef without blasting social media, etc). Exclusively used by those who adult less than 50% of the time.

Post adolescence when the light in your eyes fade away and dies.

Being a responsible adult. Used by immature 20-somethings who are proud of themselves for paying a bill.

Adulting (v): to do grown up things and hold responsibilities such as, a 9-5 job, a mortgage/rent, a car payment, or anything else that makes one think of grown ups.

Doing something grown-up and responsible

Adulting (verb)
1. The act of being adult-ish
2. "Becoming" an adult

A fake word used by idiots (millennials mainly), in an attempt to turn the adjective adult into a verb in a feeble attempt to describe if a person is actually an adult or behaves in an adult manner and thus doing the things any responsible adult with an average or above IQ can handle. You cannot "adult" something. It is as bad or worse as the overuse of learnings in the corporate world.