Abnormal Tuning Name

Hi, everyone!

I’m trying to find out some uncommon shamisen tunings. Is there a name for a tuning where the strings are tuned dimished fifths apart (e.g.: B-F-B, C-F♯-C)?

I’ve heard that there may be a tuning that fits this description called “Ni no Ni - 二の二” but this was from AI so it’s probably complete BS.