Mind:
Sponge (obviously not used all the time, has been used on more than one occasion. More “you’re out of your sponge” than “this organ right here that makes you halfway sapient is your sponge.” )
ON THAT NOTE, NOW IS PROBABLY A GOOD TIME TO POINT OUT THAT THESE TERMS ARE CALLED BY THEIR ENGLISH EQUIVALENTS FAIRLY OFTEN AS WELL, WHICH HELPS TO ESTABLISH CONTEXT. YOU’RE JUST AS LIKELY TO HEAR “SHOVE IT DOWN YOUR THROAT” AS YOU ARE “SHOVE IT DOWN YOUR PROTEIN CHUTE.” I’M NOT ENTIRELY SURE WHY I’M SPEAKING IN CAPS HERE, BUT WHATEVER. AND I PROBABLY COULD HAVE JUST POSTED THIS ABOVE THE CHART INSTEAD OF STRETCHING THIS BOX BUT WHAT THE FUCK EVER.
Brain:
Think Pan, Lobe Stem, Puzzle Sponge
Mouth:
Seedflap, Squawk Gaper, Question Geyser
Most likely similar to a penis, but more alien-y. Definitely a part of Troll anatomy that is used for reproduction. :
Bone bulge
Heart (Seadweller):
Collapsing and Expanding Bladder Based Aquatic Vascular System
Tongue (Also used for "plate"):
Nutrition Plateau
Another sex organ, obviously. Most likely a rough analogue for testicles. In that case “globes” works just as well. Depending on whether or not Karkat was just being Karkat, this might lead credence to the “vestigial gender” theory:
Autoerogonous Shame Globes
Fingers:
Prongs
Eyelids:
Lookstubs
Heart (landlubbers):
Pump Biscuit
Eyeballs:
Ganderbulbs
Funny Bone:
Absurdity Palate
Category:
Cultural crap!
House:
Hive
Neighborhood:
Lawn rings
(Bed)Room:
(Respite)Block
Bed:
Recuperacoon, Cocoon
Born:
Hatched
Birthday:
Wriggling Day, Larval Awakening
Toilet:
Load Gaper (Bluebloods say "toilet")
Fan:
Whirling device
Baby, child:
Wiggler
Bathtub:
Ablution Trap (Bluebloods say "bathtub.")
Tree:
Frond Nub
Schoolhouse:
Schoolhive
Plate:
Nutrition Plateau
Unicycle:
One Wheeled Device
Bicycle:
Two Wheeled Device
Wheelchair:
Four Wheeled Device
Refrigerator:
Thermal Hull
Fork:
Throb Stalk
Cake, bread, meatloaf:
Grubloaf
Winter-y holdiay:
12th Perigee's
Yard:
Lawn Ring
Coffin:
Corpse Box
Hatchet:
Thresher (Was also used in a similar context to “fan.”)
Funeral:
Corpse Party
Rap:
Slam Poetry
Peter Pan:
Pupa Pan
Coin:
Troll Caegar
LARP:
FLARP
Laptop:
Grubtop
Braille:
Trollbraille
Binary:
Beenary
Possibly an IV?:
Grubtube
Beef:
Beefgrub
Friend:
Enemy
Barking:
Braying
Seamstress:
Ragripper
Pirate:
Petticoat Seagrift, Gambligant
Vampire:
Rainbow Drinker
!:
Shout Pole
?:
Surprise Noodle
Courtroom:
Courtblock
Lawyer/Bounty Hunter:
Legislacerator
Judge:
Honorable Tyranny
Category:
Fauna!
Chicken:
Cluckbeast, Spleenfowl
Horse:
Hoofbeast
Squirrel:
Nut Creature
Seahorse:
Aquatic Hoofbeast
Armored Bears/ Panserbjorne?:
Cholerbears
Sadface:
Musclebeast
Category:
FIGURES OF SPEECH FUCK
“hand and foot”:
Prong and Nub
"sticky fingers:
Lascivious Prongs
"crazier than a shithouse rat":
Shithive maggots
"knee slappers":
Nub slappers
"cup of tea" :
"cup of sauce"
"puts the icing on the cake":
"puts the mucus on the grubloaf"
"tripping balls":
"tripping globes." Hussie, I love you for that one.