It’s a term we use for Train Drivers that come off the street and pass out in about a year, rather than the 7 or so it used to take.
I refer to my Ham Licence as a “boil in the bag” because you pass it so very quickly. Sometimes a few weeks, sometimes in a weekend!
M6 is a Foundation Licence, 10 watts etc.
Loved Radio for years, just a shame it went quiet around here.
Might have another delve another time 