Adjective: Describes general bloating due to partying. Targeted areas include the stomach and cheeks, but long term partying can lead to an overall increase in body fat.
Girl 2: …looks a bit tight.
Girl 1: I wish I could lose my baby fat.
Girl 2: That’s not baby fat, that’s party fat. Quit going out every night and do some sit-ups, you’re starting to look like a fat bitch.