diff --git a/code/game/atoms_movable.dm b/code/game/atoms_movable.dm
index fc3275d964a..0e28f12fcc9 100644
--- a/code/game/atoms_movable.dm
+++ b/code/game/atoms_movable.dm
@@ -701,9 +701,9 @@
 		language_holder = new initial_language_holder(src)
 		return language_holder
 
-/atom/movable/proc/grant_language(datum/language/dt)
-	var/datum/language_holder/H = get_language_holder()
-	H.grant_language(dt)
+/atom/movable/proc/grant_language(datum/language/dt, body = FALSE)
+	var/datum/language_holder/H = get_language_holder(!body)
+	H.grant_language(dt, body)
 
 /atom/movable/proc/grant_all_languages(omnitongue=FALSE)
 	var/datum/language_holder/H = get_language_holder()
@@ -713,9 +713,9 @@
 	var/datum/language_holder/H = get_language_holder()
 	. = H.get_random_understood_language()
 
-/atom/movable/proc/remove_language(datum/language/dt)
-	var/datum/language_holder/H = get_language_holder()
-	H.remove_language(dt)
+/atom/movable/proc/remove_language(datum/language/dt, body = FALSE)
+	var/datum/language_holder/H = get_language_holder(!body)
+	H.remove_language(dt, body)
 
 /atom/movable/proc/remove_all_languages()
 	var/datum/language_holder/H = get_language_holder()
diff --git a/code/modules/language/language_holder.dm b/code/modules/language/language_holder.dm
index 3dced50fb5f..d15bc4c1171 100644
--- a/code/modules/language/language_holder.dm
+++ b/code/modules/language/language_holder.dm
@@ -31,8 +31,11 @@
 	copy.omnitongue = src.omnitongue
 	return copy
 
-/datum/language_holder/proc/grant_language(datum/language/dt)
-	languages[dt] = TRUE
+/datum/language_holder/proc/grant_language(datum/language/dt, shadow = FALSE)
+	if(shadow)
+		shadow_languages[dt] = TRUE
+	else
+		languages[dt] = TRUE
 
 /datum/language_holder/proc/grant_all_languages(omnitongue=FALSE)
 	for(var/la in GLOB.all_languages)
@@ -47,8 +50,11 @@
 		possible += dt
 	. = safepick(possible)
 
-/datum/language_holder/proc/remove_language(datum/language/dt)
-	languages -= dt
+/datum/language_holder/proc/remove_language(datum/language/dt, shadow = FALSE)
+	if(shadow)
+		shadow_languages -= dt
+	else
+		languages -= dt
 
 /datum/language_holder/proc/remove_all_languages()
 	languages.Cut()
@@ -120,6 +126,7 @@
 
 /datum/language_holder/slime
 	languages = list(/datum/language/common, /datum/language/slime)
+	only_speaks_language = /datum/language/slime
 
 /datum/language_holder/lightbringer
 	// TODO change to a lightbringer specific sign language
diff --git a/code/modules/mob/living/carbon/human/species_types/jellypeople.dm b/code/modules/mob/living/carbon/human/species_types/jellypeople.dm
index 0059aab6e0d..e8b45ae524e 100644
--- a/code/modules/mob/living/carbon/human/species_types/jellypeople.dm
+++ b/code/modules/mob/living/carbon/human/species_types/jellypeople.dm
@@ -17,11 +17,14 @@
 /datum/species/jelly/on_species_loss(mob/living/carbon/C)
 	if(regenerate_limbs)
 		regenerate_limbs.Remove(C)
+	C.remove_language(/datum/language/slime, TRUE)
+	C.faction -= "slime"
 	..()
 	C.faction -= "slime"
 
 /datum/species/jelly/on_species_gain(mob/living/carbon/C, datum/species/old_species)
 	..()
+	C.grant_language(/datum/language/slime, TRUE)
 	if(ishuman(C))
 		regenerate_limbs = new
 		regenerate_limbs.Grant(C)
@@ -108,7 +111,7 @@
 	name = "Slimeperson"
 	id = "slime"
 	default_color = "00FFFF"
-	species_traits = list(SPECIES_ORGANIC,MUTCOLORS,EYECOLOR,HAIR,FACEHAIR,NOBLOOD,VIRUSIMMUNE, TOXINLOVER)
+	species_traits = list(SPECIES_ORGANIC,MUTCOLORS,EYECOLOR,HAIR,FACEHAIR,NOBLOOD,TOXINLOVER)
 	say_mod = "says"
 	hair_color = "mutcolor"
 	hair_alpha = 150
@@ -140,7 +143,7 @@
 			bodies = list(C)
 		else
 			bodies |= C
-
+      
 /datum/species/jelly/slime/spec_death(gibbed, mob/living/carbon/human/H)
 	if(slime_split)
 		var/datum/mind/M