Definition

Australian slang for "afternoon," because Aussies have a constitutional requirement to abbreviate everything and add an 'o' to the end. Part of the grand tradition that brought you "servo" (service station) and "avo" (avocado). If you're not shortening your words Down Under, you're doing it wrong.

Example Usage

Wanna grab some coffee this arvo? I'm free after 2.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=arvo&defid=217159)