Millbrook 

A boarding school in Millbrook, New York where all the preppy people go, and all the people who want to be preppy go. You can sneak out into guys dorms all the time, skip classes, and guys can smoke pot in the basement and nobody will know for two weeks.

why is that girl wearing white jeans and a barbour in the spring? oh she must go to the Millbrook Boarding School.

Millbrook by Hoffhoff June 18, 2011

Millbrook 

A small town in Newark, Illinois. Close to Yorkville, IL

"Hey bro wanna go to Millbrook for the weekend. Jackson H******** is there yeet.

Millbrook by Nutter_Butter_Boi February 7, 2019

millbrook 

Millbrook is a Los Angeles indie rock band formed in 1999. Millbrook's namesake comes from Rufus Wainwright's debut album, realeased in 1998, with track 5 titled Millbrook

"I went to see Millbrook at the Fillmore last month"

millbrook by Wer45h October 25, 2006

Millbrook Mafia 

A group of friends who play for the same football team in Millbrook while younger and grow up to play on the same high school team.

Jonny and AJ are members of the Millbrook Mafia.

Millbrook Mafia by Coach Rex September 11, 2011

millbrook 

from fortbuscus to morgan cross, millbrook is someone who loves to be sus and imposter. millbrooks are usually known to be faking tasks and killing. Sometimes you can smell a millbrook from a mile away.

you are being such a millbrook right now

millbrook by millbrook2 November 10, 2021

Millbrook Clanker 

A student who ditches their friends at their old school to Millbrook, a transfer to the big leagues. Usually shows up acting brand new, saying “Millbrook built different” after one week.

"Sounds like a stupid millbrook clanker moment"

Millbrook Clanker by RealPapayaPenetrator October 9, 2025