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.