Jewition 

The ability to identify someone as being Jewish. Similar to gaydar.

From Jew + intuition.

Working as a carpenter for the local synagogue, Henry swiftly developed an excellent Jewition.

Jewition by iyc81 September 29, 2006

jewtionary 

A book where you may look up words that are commonly used by jewish people.

I didn't know what she said... i had to look it up in the jewtionary.

jewtionary by PDiggs July 17, 2007

Jewdition 

The act of a Jewish person doing their form of math favoring their own personal financial gain

He did one for me two for him that’s jewdition (Jewish addition)

Jewdition by MrEMan Mike M (MEM) December 17, 2021