Traditional Meanings:

European (Judeo-Christian)

• Wrong decision if see vitriol – This is a sign, that an innocent person got unjustified reprimanded or punishment;
• Be attentive if pour vitriol on people – In the dream you pour vitriol on people then this means that there are people who want good for you, but also with bad intentions;
• Enemies if see vitriol (for a businessman) – This dream is a sign that there are enemies around you and this promises harassment and damage for your business.