| WA (n) | Western Australia |
| WACA (n) (pronounced wack-a) |
West Australian Cricket Association, the Perth Cricket Oval |
| wack (v) | a try at something "I'll take a wack at it." |
| WAFL (n) (pronounced waffle) | West Australian Football League |
| wag (adj) | amusing person |
| wag, wagging school (v) | playing hooky, ditching school |
| waist pack (n) | fanny pack ("fanny" in Australia means female genitalia, so it isn't normally used) also bum bag |
| walkabout (n) | Aboriginal walk in the Outback, of indeterminate length, a rite of passage. Can refer to anybody who's left unexpectedly. "He's gone walkabout." |
| Wallabies (n) | name of Australia's National Rugby team |
| wallaby (n) | small kangaroo-type marsupial |
| wanker (adj) | common usage: arrogant, stupid person who thinks he's great actual meaning: one who masturbates |
| war paint (n) | woman's makeup |
| warrigal (n) | dingo (wild dog) |
| watch house (n) | police station |
| way gone (adj) | very drunk |
| weatherboard (n) | a sheet or board made of fiber and cement or wood, used in home construction |
| weepie (n) (adj) | sad story, movie, or TV show |
| weir (n) | dam "The Mundaring Weir created the C.Y. O'Connor Reservoir." |
| weiro (n) | cockatiel a small parrot |
| well turned out (adj) | well dressed |
| we're laughing (adj) | something that turns out well "Fix this car and we're laughing." |
| wet (adj) | the rainy season in the tropics |
| wettie (n) | wetsuit |
| whacker (n) | an idiot you have no patience for |
| wharfie (n) | dock worker |
| What's the John Dory? | What's the story? rhyming slang |
| wheelie bin (n) | the main trash can for the house, with wheels on the bottom. "Take the wheelie bin out to the street so the garbos can empty it." |
| whilst (adj) | while |
| winding up (v) | to pull someone's leg "You're winding me up." |
| whinge (v) | to complain |
| whip hand (adj) | top position, really good at something "He's the whip hand on the farm." |
| whipper-snipper (n) | motor-powered weed-wacker or brush cutter |
| white ant (v) | to undermine, sabotage |
| white ants (n) | termites |
| white pointers (n) | great white sharks; topless sunbathers |
| Who opened their lunch? (v) | "Who farted?" |
| Who's your daddy? | an insult |
| whole meal (adj) | whole wheat bread |
| woof pigeon (adj) | kookaburra |
| whoop-whoop (n) | the boondocks, someplace far away, a small unimportant town "He lives way out whoop-whoop." |
| whopped (v) | to play hooky from school |
| wicket (n) | The three posts and top piece (bale) in the game of cricket. |
| willy willy (n) | mini-tornado, dust devil |
| willy woofter (adj) (pronounced woof-tah) |
gay man |
| wind cheater (n) | windbreaker, light jacket |
| windy (v) | to fart |
| witch's hat (n) | orange plastic safety cone used on roadways |
| witchetty grub (n) | a large insect larvae eaten as bush tucker; it's tasty (?) |
| wobbly (n) (v) | to lose one's temper "He threw a wobbly." |
| wog (n) | immigrants from Southern Europe; flu or cold; insects. not considered a racist term as in the UK |
| wombat (n) | marsupial hedgehog-like animal about the size of a large dog |
| wombat (adj) | Play on words: describing one who eats, roots (has sex), and leaves. Wombats are animals that eat vegetative material such as roots and leaves. |
| won't be a minute | please wait |
| won't be a moment | please wait |
| won't be a sec | please wait |
| won't be a tick | please wait |
| woofy (adj) | something that isn't good |
| Woolie's (n) | short for Woolworth's, half the Aussie grocery store duopoly, Coles being the other half. |
| working bee (adj) | volunteer work party |
| wring its neck (adj) | to drive a vehicle hard |
| wurst (n) | baloney or bologna, regional term used in South Australia |
| wuss (adj) | coward |