Wiktionary
n. 1 (context Australia slang English) A can#Noun of beer. 2 (context Australia slang English) A small open aluminium boat. 3 (context New Zealand slang English) Small package of drugs wrapped in foil.
Wikipedia
The slang or colloquial term tinnie or tinny has a variety of meanings, generally derived from some association with the metal tin, or aluminium foil which has a loose allusion to tin.
"Tinnie" is the common term for a commemorative medal made from a non-precious metal such as zinc or tin (or even plastic) and with provisions for being attached to a garment and displayed while worn. Such medals were commonly sold or given away at public events to build group cohesiveness or to lend prestige to the wearer. The "golden age of the tinnie" was World War Two, and the Nazi Party and the USSR were among the most prolific disbursers of them. They are avidly collected today by hobbyists and, although usually inexpensive to obtain, are often collected in conjunction with coins, exonumia, military awards and decorations and other related small stamped or cast metal objects.
In New Zealand, a "tinny" or "tinnie" can be a small package of cannabis wrapped in tin foil (cf. 'foilies' in Australia), retailing for between NZ$20–25 (depending on the region). A building where such retailing takes place (commonly a superficially unremarkable home) is a "tinnie house". Other drugs such as methamphetamine may be available as well. In recent years the term has become not unusual in New Zealand court judgments involving the Misuse of Drugs Act.
Another variant of "tinny"/"tinnie" is as a slang term for a can of beer, commonly used in Australia, New Zealand and some parts of the UK. Most items referred to in this region as "tinnies" are actually now made of aluminium.
In Australia and New Zealand "tinny" is also commonly used as slang for a small open aluminium boat.
Short for tin-arse, "tinny" is also used in Australia to mean "lucky", as in "he's a tinny bastard". The term "tin-arse" and sometimes "tin-bum" are in common use in New Zealand.
Tingoora, a small town just north of Kingaroy in south-east Queensland, Australia, is also often referred to a "Tinny", e.g. the "Tinny Pub".
In the United States, a "tinnie" refers to a piece of tin foil that is made into a smoking device, most often for cannabis. It is used when nothing else of use can be found.
Other uses cover certain German medals or shops selling aluminium products.
"Tinnie" in Australian slang also means a good mate and a good friend.
Usage examples of "tinnie".
My last recollection was Tinnie cursing like a Marine as she levered loose extremities into bed.
Then he told us that Tinnie had distracted Penny enough for him to slip a couple of suggestions into her divine head.
He managed enough expression to approve my choice in women when Tinnie stalked in.
I soothed my bruised feelings by easing over to Tinnie, where I got some exercise getting my hands slapped.
Teacher down the chimney, I almost caught Tinnie and the others, heading home.
I wondered if Tinnie or Belinda was to blame, or if she was still just that untrusting of the world.
Maybe I can talk Tinnie into going off to Imperial New City for a couple weeks.
He is determined to get me hooked up with Tinnie Tate or Maya Stubbs, both of them beautiful, squared-away sweethearts who deserve Prince Charmings who are the real thing.
For Tinnie it would be dead ahead full speed, and whoever got in my way had best have his gods paid off because I wouldn't slow down till I ate somebody's liver.
It was a lead-pipe cinch that, because I'd made a date, Tinnie would suffer a miraculous remission from the sulks.
Tinnie got the most attention but simmered when I took a turn with Alyx or Nicks or Kittyjo—once, guardedly.
When I imagine people I pick them put together like Tinnie or Nicks or Tama Montezuma.
We’ll round up Tinnie and Nicks and go out to this romantic little ethnic place I know.
Ten, one humanoid—confirm ten tinnies, one wet, looks like an officer.
He debated whether to deploy a remote, then wondered what he’d do if it showed him a hundred more tinnies coming.