like a "ding dong ditch" but instead of ringing the doorbell and running away before a resident answers the door, the "polack" knocks on the the door and waits for the resident to see him/her, before running away to hide, laugh, etc.
Don't get me wrong, I like pranks as much as the next guy, but Danny's going to find himself in hot water if he keeps it up with this polack knock thing.
by tired of sex entries April 23, 2010
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Polack don’t crack is the Polish version of Blacks don't crack. It means when a Polish person/someone of Polish decent doesn’t seem to age.
Karen is Polish and looks in her 30s when she’s nearly 50!! Wow polack don’t crack!!
by Jeanyevill July 29, 2019
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An individual of Polish ancestry who calls law enforcement agencies to arbitrarily complain about the smell of a tree that they (the stupid fucking polack) not only planted outside of their livingroom window, but also on their neighbor's property.
June: "Gee Ward, our neighbor sure is a stupid fucking polack."

Ward: "Yes Dear, I suppose that you could be right. However, I was thinking more along the lines of dumb cunt."
by Stas Stachowitz May 12, 2011
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