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1.
When two Jews bang fists against each other in ethnic solidarity.
'I gave him a jewbump after the rally.'
by supd March 22, 2010
 
2.
The bump that Jewish people have on their noes that makes it huge.
Wow, look at that Jew-bump, even without the Yam-aka, you can tell he's a Jew.
by rhaller09 May 15, 2010
 
3.
a large or easily noticeable bump on ones nose, usually a Jewish person.
"Dude you see that girls jew bump?"
by Dustin3330 September 21, 2007