Polish Slip 

When a person (Usually Polish/Eastern European), works a self-employed job and gets paid with cash-in-hand to avoid paying income taxes.

Tytus works as a plumber, he's always pulling off the Polish Slip.

Polish Slip by CrypticReich October 24, 2020

Polish Slipper

The act of jerking off into a sock and then either wearing it yourself or having someone else wear it while walking around.

Last night was crazy. I was buffing the banana and made my girlfriend a Polish Slipper

Polish Slipper by KingsFullOfTwos November 1, 2010