frat

noun

ˈfrat 

US, informal

: fraternity sense 1c

Today's progressive notions of responsible partying and political correctness have hit hard at all eighteen of Dartmouth's frats but especially so at Alpha Delta, which has always had the reputation of being the baddest house on campus.

—Eric Konigsberg

—often used before another noun

frat houses/brothers

(often disparaging) a frat boy [=a member of a fraternity]

Examples of frat in a Sentence

Recent Examples on the Web

The Cornell 7 lawsuit refers to the legal document filed by an unnamed Cornell University student who accused seven men of raping and drugging her at a frat house party in October 2024 — and faced no legal consequences. — Payton Turkeltaub, Variety, 7 Oct. 2026

But somehow, in the midst of all this frat-boy revelry, Ilya is able to outline his vision for the future, one in which AI will have solved numerous human problems, including eradicating not only cancer but also loneliness and unhappiness. — Stephanie Zacharek, Time, 7 Oct. 2026

Cornell Daily Last week, CBS News New York exclusively obtained video of Chi Phi fraternity's group Snapchat conversation from the night Jane Doe, the alleged victim, says she was drugged and raped inside the frat's house. — Dick Brennan, CBS News, 6 Oct. 2026

The frat brother who invited Jane Doe to the house that night sent a photo to the chat that appears to show her in the bedroom. — Aaron Katersky, ABC News, 2 Oct. 2026

Word History

First Known Use

circa 1895, in the meaning defined above

Phrases Containing frat

• frat party