An Ashkenazic Jewish and Slavic surname, "Czernikowski" (pronounced "T'sh-er-nee-kov-skee") is a name related to "Black" ("Czarny" or "Czarna") or a place name (e.g., "Czarnia" for the Czarna or Czarnia River in Northeastern Poland).
Unfortunately, a number of Holocaust victims bore the name "Czernikowski" (according to YadVashem.org). The Czernikowski family often cited by Yad Vashem seems to come from the Lodz and Kielce, Poland regions (among other places).
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.