2 of the same pieces pinned

If two of the same pieces are pinned, is it called a pin or a skewer? An example:

Thaat's a skewer... unless, for positional reasons, the LSB is more valuable than the DSB.

With a pin, the piece furthest away is the more valuable one.

I don't think it's either.

We should call it a pisk or a skin.

or piskewern

I know sometimes Black's DSB is considered more important, and White's LSB. So what about this:

Or 2 Knights:

It's more like a skewer because skewers usually immediately win material, as does this.  In contrast pins don't usually immediately win material, they simply restrict the opponent's position.

My understanding is that it's only a pin if the pinned piece is pinned to a more valuable piece. If it's pinned to a piece of equal or lesser value, it's called a skewer.