GABFEST Meaning of GABFEST in English /gab"fest'/ , n. Informal.1. a gathering at which there is a great deal of conversation. 2. a long conversation. [ 1895-1900, Amer.; GAB 1 + -FEST ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012