red card

noun
  1. 1

    A card displayed by the referee when a player is sent off for a serious infringement of the rules.

    โ€œIn the 1994 FIFA World Cup, Argentine player Diego Maradona was given a red card for striking a US player Tab Ramos.โ€

  2. 2

    Any official instructions to vacate an area.

    โ€œI hoped to park in the members' area but the attendant showed me the red card.โ€

Source: https://en.wiktionary.org/wiki/red%20card