Top Definition
Someone who is both Jewish and genius.
Keyne: I'm a fuckin genius!

Shawn: No, you're a jewnius.

Ben: You're fuckin right doggie!
by The Goofather March 25, 2008
A very smart Jewish person, or a "jewish genius." Usually used to describe a jewish person sarcastically when they are being less than intelligent.
Jeremy is a jewnius for taking a shot on his own basket.

Jillian is a jewnius for taking that much adderall.
by francis4thewin October 25, 2009
A genius but they are Jewish so it only makes sense to call them JEWnius.
Gabe: 12x14 = 168
Jake= OMFG how did u know that u JEWnius
by Anonymous Pubes January 19, 2012
a form of genius, but one who specifically knows all about jews and their heritage.
That kid singing all the prayers, hes a jewnius.
by chocoluvr1234567890 May 15, 2009

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.