|This article is about an older version of DF.|
Under certain conditions, creatures (such as your dwarves) will vomit. This may occur from an injury to an organ (usually the stomach, pancreas, and such), or from cave adaptation. Vomit does not seem to create an unhappy thought ("nauseated by the sun" is from cave adaptation).
A puddle of vomit is represented by the same character as water (a double tilde: ≈) but is green rather than blue. Another object on top of a puddle of vomit will appear normally but on a green background. If vomit and blood puddles exist on the same tile, its color will be brown. Walking through vomit will not affect a dwarf's mood.
Vomit will disappear at the beginning of each season.
It can also be used as a weapon in adventurer mode, much to the dismay of your enemies.