It's a subtle way of saying that you can't do something in a relationship. Like when you
don't have
time for a romantic
dinner, but only two minutes for sex.
1:
Woman: We're supposed to taste wedding cakes this
afternoon, remember?
Man: Ouch! No-can-do's-ville, baby doll.
2:
Woman:
Wow, that was really
mean. I think you owe me an apology.
Man: No-can-do's-ville, baby doll, no-can-do's-ville.