https://github.com/tgstation/tgstation/pull/54710

code/__DEFINES/misc.dm

@@ -515,6 +515,7 @@ GLOBAL_LIST_INIT(pda_reskins, list(PDA_SKIN_CLASSIC = 'icons/obj/pda.dmi', PDA_S
 
 #define VOMIT_TOXIC 1
 #define VOMIT_PURPLE 2
+#define VOMIT_NANITE 3
 
 // possible bitflag return values of intercept_zImpact(atom/movable/AM, levels = 1) calls
 #define FALL_INTERCEPTED		(1<<0) //Stops the movable from falling further and crashing on the ground

code/__DEFINES/nanites.dm

@@ -12,6 +12,11 @@
 #define NANITE_CLOUD_DISABLE 2
 #define NANITE_CLOUD_ENABLE	3
 
+//Nanite excess thresholds
+#define NANITE_EXCESS_MINOR 25
+#define NANITE_EXCESS_VOMIT 100
+#define NANITE_EXCESS_BURST 350
+
 ///Nanite Protocol types
 #define NANITE_PROTOCOL_REPLICATION "nanite_replication"
 #define NANITE_PROTOCOL_STORAGE "nanite_storage"