0 informal for fraternity (= a social organization for male university students in the US and Canada)
He wasn't sure but with such a course Marshall might even be eligible for the frat. that year.
It took the united efforts of his classmates, his frat., and the faculty to keep his studies within decent hailing distance of eligibility for playing.
The seniors in the 'frat' said we had to join, and they said we couldn't resign, either, after we had joined.