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A racial slur for a Jew, or someone of jewish decent.
How about you take all my money you Yickshnicker.

I got Yickshnickered out of my Christmas bonus!
by Algernon885 March 05, 2011
Noun: A racial slur for a jew.
Mr. Goldstein, the banker/accountant, is a total yickshnicker.
by Tom_Servo March 05, 2011