Meaning of silence breaker in English:

silence breaker

noun

  • A person who speaks or makes noise after a period of silence, or when others are silent; (now) especially a person who speaks out publicly about something controversial, shocking, etc., that has not previously been disclosed or openly discussed.

    In early use not a fixed collocation.

Origin

Early 17th century; earliest use found in Anthony Munday (d. 1633), playwright and translator.