Please explain...

[Makeitstop]

From websters:

1 : a knee-length pleated skirt usually of tartan worn by men in Scotland and by Scottish regiments in the British armies
2 : a garment that resembles a Scottish kilt

If you don't like that one, here's a whole bunch to choose from

I think this is a bit more usable as a definition. A pleated knee-length manskirt. Works for me.

Interesting you take MacMillan to task for using a source that basically agrees with the citation from Websters as well as the citations you linked to. Then make up a definition all your own which has no citation or basis in fact.

The definition MacMillan was using does not basically agree with Websters. Websters does not say that a kilt must somehow be descended from the old highland attire or make any reference to the depth of the pleats. And Websters has a second definition, which is fundamentally important. Websters is far less rigid.

second, I did not make up a definition all my own, I was merely restating the definition a little more plainly. If "a garment that resembles a Scottish kilt" is a kilt, then the garment does not have to be worn "in Scotland and by Scottish regiments in the British armies" to qualify as a kilt. And since the tartan bit is not absolute, it is not a requirement either. That leaves 4 basic characteristics to qualify according to Websters: knee-length, pleated, skirt, and worn by men.

So, like I said, it's a pleated knee-length manskirt.