In this, they are talking about the employee's brother who might be rich, but what is "mean old moneybags is gonna be on your porch at 9:00"? I don't even get any word of it.
-ghost whispereremployee- I better run.'Cause i told mitch i was gonna pick him up at the hotel.Melinda(boss)- So he's not staying at your apartment?
employee- He's way too rich to sleep on my couch.
Melinda- Yeah. And to have drinks on mine.
employee- Well, too bad, 'cause mean old moneybagsis gonna be on your porch at 9:00.
Well, too bad, 'cause mean old moneybags
is gonna be on your porch at 9:00.
Not knowing the context of this conversation in the broader storyline, all I can do is tell you what the individual phrases normally mean.
".. mean old moneybags" would usually refer to someone who was rich, maybe very rich, but who was unpleasant and/or reluctant to spend money (tight-fisted, miserly).
".. is gonna be on your porch at 9.00" means to "be at your front door", or more generally, "turning up at your place" at 9am.
not a teacher