Green’s Dictionary of Slang

vip n.2

[Vine Products of Kingston, Surrey, UK; varieties incl. Rich Ruby, Sweet White and British Sherry]

VP sherry, a cheap but potent alcohol.

[UK]T. Taylor Baron’s Court All Change (2011) 132: ‘I’ll never drink another glass of vip again as long as I live — so help me. I feel dreadful’.