I found out TCRF had this, as well as a AR code after I found this animation
Info TCRF provided (I edited some of this to be more accurate)
"Within Luigi's animations appears to be a variation of the same animation used for when Luigi is being held by the Grabber Ghosts. It is also interesting to note that the choking animation is internally called 'poisoned' and that he holds himself while choking, showing an unused depressed eyes texture, Luigi's cheeks are slightly fatter, and he slaps his neck at the end of the animation. It is quite possible this was the original animation used when he came in contact with a poisonous mushroom."
Apparently, I was dumping textures during that, so I might be able to show the eyes
EDIT: Eyes
