diff --git a/mods/barf_mod.js b/mods/barf_mod.js
new file mode 100644
index 00000000..b5ba91ed
--- /dev/null
+++ b/mods/barf_mod.js
@@ -0,0 +1,42 @@
+elements.barf = {
+    color: "#9ACD32",
+    behavior: [
+        "XX|XX|XX",
+        "XX|XX|XX",
+        "M1|M1|M1"
+    ],
+    category: "liquids",
+    density: 1020,
+    state: "liquid",
+    viscosity: 5,
+    reactions: {
+        "milk": { "elem1": "cheese", "chance": 1.0 }
+    },
+    tempHigh: 300,
+    stateHigh: "stench",
+    tempLow: 0,
+    stateLow: "frozen_barf",
+    flammable: true,
+    burn: 20,
+    burnInto: "smoke"
+};
+
+elements.frozen_barf = {
+    color: "#B0E0E6",
+    behavior: [
+        "XX|XX|XX",
+        "XX|XX|XX",
+        "XX|XX|XX"
+    ],
+    category: "solids",
+    density: 1030,
+    state: "solid",
+    tempHigh: 0,
+    stateHigh: "barf"
+};
+
+elements.slime.reactions = elements.slime.reactions || {};
+elements.slime.reactions.blood = { "elem1": "barf", "chance": 1.0 };
+
+elements.blood.reactions = elements.blood.reactions || {};
+elements.blood.reactions.slime = { "elem1": "barf", "chance": 1.0 };