K

Kangaroos loose in the top paddock: Intellectually inadequate. ("He's got kangaroos loose in the top paddock.")
Kelpie: Australian sheepdog originally bred from Scottish collie.
Kero: Kerosene.
Kindie: Kindergarten.
Knock: To criticize.
Knock back: Refusal (noun), refuse (transitive verb).
Knocker: Somebody who criticizes.

L

Lair A flashily dressed young man of brash and vulgar behavior, to dress up in flashy clothes, to renovate or dress up something in bad taste.
Lair it up: To behave in a brash and vulgar manner.
Larrikin: A bloke who is always enjoying himself, harmless prankster.
Lend of, to have a: To take advantage of somebody's gullibility, to have someone on. ("He's having a lend of you.")
Lippy: Lipstick.
Liquid laugh: Vomit.
Lizard drinking, flat out like a: Flat out, busy.
Lob, lob in: Drop in to see someone. ("The rellies have lobbed.")
Lollies: Sweets, candy.
London to a brick: Absolute certainty. ("It's London to a brick that taxes won't go down.")
Loo: Toilet.
Lucky Country, the: Australia, where else?
Lurk: Illegal or underhanded racket.

M

Mallee bull, as fit as a: Very fit and strong. The Mallee is very arid beef country in New South Wales/South Australia.
Mate: Buddy, friend.
Mate's rate, mate's discount: Cheaper than usual for a "friend."
Mickey Mouse: Excellent, very good. Beware, though — in some parts of Australia it means inconsequential, frivolous or not very good!
Middy: 285-ml beer glass in New South Wales.
Milk bar: Corner shop that sells takeaway food.
Milko: Milkman.
Mongrel: Despicable person.
Mozzie: Mosquito.
Muddy: Mud crab (a great delicacy).
Mug: Friendly insult ("Have a go, yer mug!"), gullible person.
Muster: Round up sheep or cattle.

N

Never Never: The Outback, center of Australia.
Nipper: Young surf lifeguard.
No-hoper: Somebody who'll never do well.
Not the full quid: Not bright intellectually.
No worries!: Expression of forgiveness or reassurance. ("No problem," "Forget about it," "I can do it," or "Yes, I'll do it.")
Nuddy, in the: Naked.

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