I would consider super FF as 300K BIS miles per year.

I do not currently qualify but have flown that much some years and know many who have.

Frequent Flyer - 25 segments or 25k BIS miles
Very Frequent Flyer - 100 segments or 100k BIS miles
Super Frequent Flyer - 300 segments or 300k BIS miles

Why, I am super! Thanks for asking!:D

I'd say 200K miles per year to be a super frequent flyer.

What about a super duper frequent flyer? :D

Super duper FF is one million BIS miles per year. It it doable; just over 19,000 miles per week.