post boy1
/ˈpəʊs(t) bɔɪ/noun
1A boy who carries and delivers post; a boy or man who rides express, changing horses at intervals, to deliver letters, dispatches, etc. (now historical ). Hence occasionally: a bringer of news; frequently as the title of a newspaper or periodical.
2The postilion of a stagecoach, post-chaise, or hired carriage. Compare postilion. Now historical.
Origin
Late 16th century. From post + boy.
post-boy2
/ˈpəʊs(t)bɔɪ/Australian
noun
The brown flycatcher or Jacky Winter, Microeca fascinans.
Origin
Early 20th century; earliest use found in John Albert Leach (1870–1929). From post + boy.