meaning of "6-4-2"

6-4-2: A form of detention... effectively extreme JUG.

Six(6) weeks of "short bounds," four(4) weeks of JUG and two(2) lost weekends.

"Short bounds" - simply meant that you could not leave
the campus for six weeks (no bluffs, no walk into town
for a movie, no fun at local establishments along the
highway such as Ma's or the bowling alley).

"JUG" - Justice Under God

"Lost weekends" - the Jesuits give you a textbook and
you begin writing in longhand. A lost weekend is entirely
spent in the JUG room in Kostka Hall.  Any free time
available between the end of breakfast and the night bell
in your dorm on a Saturday and a Sunday was spent writing
and you better have a building stack of papers to show a
passing Jesuit.