...... The kukri is most definitely used as a weapon, and has been for hundreds of years.....
......The fact that it is also used as a tool does not change the fact that it is a weapon.
Almost all knives have been used as weapons. That doesn't mean they were designed as weapons though.
The fact that they are also used as weapons doesn't change the fact that they were designed as tools though.
Which is it for a kukhuri? To be honest, I don't know. But to be equally honest, I doubt any of us really know.