From Quake Wiki

void bprint (
      string text
      [, string text2]
      [, string text3]
      [, string text4]
      [, string text5]
      [, string text6]
      [, string text7]
      [, string text8]
  • text, text2, ... = text(s) of the message, if more than one text they are concatenated

Broadcast a message to all players on the current server.

The function really just sends a SVC_PRINT, reliable to all (MSG_ALL)

Not more than 8 parameters are allowed.