fraternity：男子学生社交クラブ
disciplinary：訓練上の
truckload：トラックの積み荷
Fizzies←fizzy：炭酸がじゅわっと泡立つ
cadaver：解剖用の死体
alumini(複)→alumnus：同窓生
twerp：バカ
grab the bull by the balls → take the bull by the horns：怖れず困難に立ち向かう。
https://www.quora.com/What-is-the-meaning-of-the-phrase-taking-a-bull-by-the-balls
I assume that “to take the bull by the balls” is a humorous version of “to take the bull by the horns”. It would mean “to confront an extremely difficult situation”, since as hard as it may be to take a bull by the horns, I can only assume that the bull will be even harder to deal with if you try to take him by the balls.
