choco /ˈt͡ʃɒkəʊ/ noun4 •(Australia, slang) A person with dark skin tone.Our ethnic minorities whether they be oil slicks, chockos or slopies have certainly given a new dimension to the Australian businessman’s lunch. — 1985 •Clipping of chocolate.CHOCO MAYO CAKE In this chocolate cake, mayonnaise is substituted for the butter. Good. — 1991 •(Australia, slang) An army reservist. •(Australia, no longer used) A militiaman or conscript; chocolate soldier.I've a letter here to hand, Saying Chockos, Yanks and Refugees Have overrun the land. — 1942 formschocos