Kats (sometimes spelled Katz) is a derogatory Jewish
name given to
people who are cheap and think they know everything. This word is extremely offensive to Jewish
people. The originally meaning was:
As a Jewish surname, Katz is an abbreviation formed from the Hebrew initials of the term Kohen Tzedeq (Hebrew: כּ ץ ), meaning "priest of justice"/"authentic priest" or Kohen Tzadok meaning the name-bearer is of patrilineal descent of the Kohanim sons of Zadok.