It says: "knit circularly in stockinette till height reaches 2". Brutally increase, evenly all around in a single row: (k2 inc 1)*
then at the very bottom of the pattern it says: if for some reason you object to brutally increasing, please read the entire works of Eliz. Zimmerman before trying to tell us anything about it.
I have done a bunch of google searches too, as well as searching within knitting sites. nada
I have to agree that it's just a descriptive term, not an actual technique. It's par for course for EZ... that's how she is. You have to take her instructions with a grain of salt and remember her humor.