| yabber (adj) | lots of talk |
| yabby (n) | freshwater crawdad |
| yakka (adj) | work "It's hard yakka." |
| Yank (n) | An American from anywhere in the U.S. |
| yankee shout (adj) | round of drinks where everyone pays for themselves |
| yardie (n) | a yard-long glass for drinking beer, holds almost a half gallon. Former Prime Minister Bob Hawke once held the world speed record for drinking one. |
| yobbo, yob (n) | uncouth male |
| yodel (v) | vomit |
| yonnie (n) | stone of useable size for building |
| yonks (adj) | a long time "It's been yonks since I've seen you." |
| You der! | "You idiot!" |
| you got told (v) | you got in trouble school kid talk |
| You little ripper! | exclamation upon hearing good news |
| youse | plural of "you" |
| Yowie (n) | mythical Australian monster, like Bigfoot |