usy 

a jewish organization for teens from 9th-12 grade. it focuses on jewish learning and study. but also has the best people who will become your best friends. not just that but is a great place if you just want to hook up with someone

in usy the dances are sick!

usy by hagalil! April 8, 2008

usy 

a massive orgy for jewish teenagers

David went to usy and h.u with two girls at the same time

usy by david November 9, 2006

usy 

jewish teens pretending to act overly jewish when really only there to get action

"We were ...praying :\ at USY"

usy by hanefesh chapter May 29, 2005

usy 

The most awesome Jewish Youth Group EVER!

AND NOT A CULT LIKE NCSY! (they are so uncool they dont have a definition)

Also a great place to hook up with ECRUSY (pronounced E-C-rusy) girls.

Josh went to USY to hook up with some ECRUSY girls, but couldnt because he had mono.

usy by ecrusyer June 11, 2006

usy 

A Cult of Jewish Teenagers looking to hook up

Yeah i just HAVE to go back to USY you dont understand

usy by Jappy Jew June 5, 2005

USY 

In Seaboard Region: Unusually Sexual Youth

In Maryland, we're all a bunch of USY.

USY by Ben L October 17, 2004

usy 

A place for kids whose parents think that they are getting a Jewish education to hook up with random Jews. In the process, kids do learn about Judaism, and everyone wins.

Christian: Want to hang out this weekend?
Jew: Nah, I'm going to usy!
Christian: Man, that place is a total Jewfest.
Jew: Yeah, but I get to hook up with random horny girls!
Christian: True. Sorry for trying to cockblock.

usy by Stevenbobeev'n April 6, 2008