Urban Dictionary, "Gay Water" is "A vodka soda water with lemon or lime. A gay man's perfect gateway to a good buzz and a small waistline." In a sentence:
Launching Thursday is a brightly colored canned vodka and soda beverage that proudly displays who it’s for, instead of backing off from support for the LGBTQ+ community as other companies
Launching Thursday is a brightly coloured canned vodka and soda beverage that proudly displays who it’s for, instead of backing off from support for the LGBTQ2S+ community as other companies have done in recent months.