Green’s Dictionary of Slang

(Aus.) Victoria Bitter brand beer.

2000		Wikpedia: Victoria Bitter 8 Nov. 🌐 VB is humorously known as ‘Vaginal Backwash’, ‘Vile Brew’, ‘Vitamin B’, ‘Very Best’, ‘Vomit Beer’ or ‘Virgin Breaka’ in certain parts of Australia.
2010		Wikpedia: Victoria Bitter 6 Oct. 🌐 The beer has acquired numerous nicknames over the years, many of which are commonly used today. These include ‘Veebs’, ‘Very Best’, ‘Vitamin B’, ‘Victory Beer’ (for after a win in the Footy), ‘Vomit Beer’, ‘Vaginal Backwash’, and ‘Virgin Breaker’.
2017		Charlie’s Blogs and Stories 19 July 🌐 By the way, Australians have a love hate relationship with VB. You either love it or you hate it. The haters often refer to it as Virgin Buster or Vomit Bombs.