dependently wealthy

someone who lives like they are rich while simultaneously mooching off of someone else.

"Did you see Dave's new car? Yeah, but how did he afford it without a job? He still lives with his folks, so he's dependently wealthy."

or

"Brian threw a fantastic party last night at his brother's beach house, with money he borrowed from his girlfriend...Man, he sure is dependently wealthy!"

by Nuggets McGee February 6, 2009