kegging out

a woman who is letting it go; she had a trim, fine body with a narrow waist and perky curves, but she is becoming over weighed because she doesn't care to stay in shape; that phase between trim & foxy, and being a keg on legs

"Janice used to be so thin and cute! Now she's gained weight. I'm not attracted to that."

"Yeah. She's kegging out. Maybe she thinks having a fatter ass and inactive lifestyle is sexier."