frat [美 fræt, 英 frat] 名词 美 俗
1. frat (building):
- frat
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单语范例（未经PONS编辑处理）
With a new haircut and new popularity, he is invited to join the frat.
en.wikipedia.org The members of a student fraternity can be called frat(ernity) boys, technically preferable to the pleonasm frat-bro(ther), and remain so for life as adults, after graduation.
en.wikipedia.org In fact, none of the writers you are profiling in your article was in a frat.
en.wikipedia.org There they run into a bunch of partying frat boys who force them to jump into the quarry naked.
en.wikipedia.org