Proper noun
GBBO
(television) Initialism of The Great British Bake Off: a British television baking competition, debuted in 2010, in which a group of amateur bakers compete against each other in a series of rounds.
It is not yet known who will replace Sandi, with GBBO winner Nadya Hussain and Richard Ayoade in the running. Source: Internet
Since your GBBO win, you’ve been rubbing shoulders with the great and the good in the world of celebrity chefs and bakers. Source: Internet
Well it's no GBBO but was a lot of fun! Source: Internet