When you're with a chick that's crazy, but she watches your kid while you're at work. The sex is great, so you don't feel the need to go to your backup plan just yet.
Similar to a Bangmaid
Guy 1- "Why are you still with that crazy bitch?"
Guy 2-"She's cheaper than a babysitter"
Guy 1- "So it's a dick for daycare situation?"
Guy 2- "Pretty much"