One who is a consultant and also a cunt. Highly prevalent in the pharma/healthcare consulting industry.

When you eat dirt for the first time and leave your family to build a shack in the woods

Some one who gives irrelevant or unhelpful advice often based in their own prejudices and assumptions.

(often accuses others of being askholes for ignoring said advice)

A senior UK doctor who is a little too big for their boots. In the UK senior specialist doctors are Consultants. The vast majority are lovely people. But anyone who has worked in the health service long enough will have met and had to work with at least one Cuntsultant. The main advantage of this form of words is that in the spoken form it's almost indistinguishable from the proper term Consultant.

I haven't even extended its use to Management Cuntsultants but I suspect that's an even richer vein of usage.

Variants: Cuntsultancy