Never seen it before, never heard it, and never want to see it again :P Looks like someone who couldn't stranslate
Benjamin to the right name. I didn't think of min ja min, but that's probably because I never say it, not at the same time. It also makes me think of
Mio min
Mio. I prefer Minjamin, since Miniamin makes me think of mint. But Benjamin,Minjamin and Miniamin makes me also think of stove(=braskamin).