LORELAI: Hey Little Debbie, your dad is definitely gonna be there.
Debutantes are often called debs for short. Lorelai turns this into Debbie in reference to Little Debbie, a brand of cookie and cake snacks that has a little girl on the logo.
It’s a product line of McKee Foods, and the company founders, O.D. and Ruth McKee named it after their granddaughter, Debbie, in 1960, even using her image to promote the products. Debbie McKee-Fowler is now the Executive Vice-President of McKee Foods.