That's right, all those words are describing the same firearm. Check this puppy out! Some crafty Brit decided he wanted to build this monstrosity. I'm not saying its great, but the ingenuity and talent is remarkable to say the least. Watch the video at the end for sure.
https://www.gunsamerica.com/digest/uk-man-makes-compliant-belt-fed-lever-action-44-magnum-bullpup/
https://www.gunsamerica.com/digest/uk-man-makes-compliant-belt-fed-lever-action-44-magnum-bullpup/