Noun
jocko (plural jockos)
(informal) A lawn jockey.
jocko (plural jockos or jockoes)
(archaic) A chimpanzee.
The bighearted Jocko impulsively adopts a pair of war orphans in the closing days of World War I, intending to raise them with his singing sweetheart, Aggie (Binnie Barnes). Source: Internet
Domestically successful, after serialisation the stories were published in book form, with Hergé continuing the series and also developing both the Quick & Flupke and Jo, Zette and Jocko series for Le Vingtième Siècle. Source: Internet