We've had "Puff Adder" before and it was an excellent traditional Boer meal.
It is an eland colon thoroughly cleaned and turned inside out so all the fat is on the inside. It is then stuffed with stewed tomatoes, garlic cloves, onions, herbs, filet mignon, kidney, and a bit of heart. It's then grilled over mopane wood.
it's a large sausage, kind of the size of a salami. The fillings are quite large, cubed rather than minced meats and vegetables. It's cut into 1" thick medallions and it is excellent.
If you haven't tried African plains game organ meat, I'm here to tell you it is 1/10th the intensity of calves liver or American game. It's very, very mild. My youngest son fell in love with deep fried impala liver schnitzel on his first safari when he was eight, so even young people with a broad palate enjoy it.
I will say that I've had eland stomach tripe stew and its preparation did not agree with me. In the USA, tripe is bleached white before it is served, in the bush it still tasted like lawn clippings. Not like actually, it tasted 100% identical to eating lawn clippings right from the mower bag.
I don't know that I would eat "African Calamari" straight in the same way I wouldn't eat my bratwurst casings absence the bratwurst. Just not a lot of flavor.