when you're too lazy and dirty to go out with your friends, but so desperate to drink that you stay in and drink in your grimey pajamas.
Person A: "Dude I'm too tired to mingle tonight."
Person B: "Wanna have a grime fest?"
Person A: "Ballin plan."
Person B: "Wanna have a grime fest?"
Person A: "Ballin plan."
by Julie Cooper April 27, 2008