Japsterdam

>Ik kom uit Japsterdam of zoiets

Japsterdam is the very real city which Mymy was born in. It is first mentioned in part 3 when Coco is about to say Mymy was born in Japan and Mymy corrects her by informing her that she was actually born in Japsterdam. Japsterdam is located in the Drenthe province of the Netherlands.