Glossary
What is death breath?
Death breath is slang some vegans use for the breath of someone who has recently eaten meat. It comes up most often in the context of kissing, and it describes a personal aversion rather than a medical condition or a clinical finding.
Where the term comes from
It is informal community slang with no single documented origin, circulating in vegan spaces online and in conversation. The construction is deliberate: it names the animal rather than the meal.
What it refers to
It refers to a reluctance to kiss someone who has recently eaten meat. For the people who use it, the objection is not about hygiene. It is the same reaction described under cross-contamination: once you think of animals as individuals rather than as food, physical closeness to what someone has just eaten can feel unwelcome.
It is used with varying degrees of humour. Some people mean it lightly, others mean it literally, and it is one reason some vegans prefer to date other vegans.
Is it a medical term?
No. It is community slang, not a clinical description, and Grazer makes no claim about anyone’s breath. Note also that the phrase is used elsewhere with completely unrelated meanings, so context matters.