casual

arvo
Australians don’t have time for long words, so “afternoon” gets the chop and becomes “arvo.” It’s the go-to way to mark any plan happening after lunch but before everyone heads to the pub. In a classic Aussie day, you might grab a servo snack, meet a mate, complain about the heat, and all of it happens “this arvo.” It’s casual, friendly, and perfect for sliding into a convo without sounding too serious. Use it and you instantly sound like you’ve lived through at least three scorching summers and a handful of barbie mishaps. Let’s smash a choccy bikky this arvo before heading to the beach.

i dunno
The universal answer when you either genuinely don’t know or aggressively don’t care. Works for both. “Where’s my charger?” “I dunno.”

bet
A one-word thumbs-up from the streets. When someone hits you with “bet,” they’re basically stamping your plan with approval—no flair, no fireworks, just a chill seal of agreement. It’s the universal way of saying “say less” without wasting extra syllables, and sometimes it also means “watch me do it.” Depends on tone, eyebrow position, and the level of chaos in the air. “We dipping after class?” “Bet.”