twelvy

a twelve year old who act older then there age

look at those twelvy dressed like sluts

by goblinMArtians February 25, 2012

Twelvie

A twelvie is a 12yo girl or boy that acts way older than they actually are, and acts ridiculously annoying. They also try to be cool, but epicly fail.

*12yo buys car*
"Such a twelvie.."

by COOKIEWOOKY October 3, 2019

Twelvie

A kid ages 12-15 who acts and thinks they are older than they actually are.

A group of twelvies outside smoking.

by Adolescence January 8, 2017

Twelvie

A word used to describe any teenagers between the ages of 12-18.

Anyone who is under the (Australian) legal age.

Person 1: I can't tell how old these girls are with all their makeup.
Person 2: Oh, she's a twelvie trying to get in a club.

Person 1: So many twelvies around.
Person 2: It is school holidays.

by Squisheee October 26, 2014

Twelvy

Rural slang for a 12 gauge shotgun

I didn’t use a 20 gauge at the range I pulled out the twelvy and aired it out

by Someonenun January 3, 2023

Twelvie

The Police. Any law enforcement agent. See also "12", "PO-PO", and "ONE-TIME."

Twelvies erywhere, but they won't get me.

by bearknife April 25, 2014

Twelvie

Mainly used to describe young (12-15) rich white boys and girls who use their parents money to buy marijuana. Then they proceed to post about it all over social media, eventually proceeding to them being caught by their rich parents. Then the cycle starts all over again.

"Did you see Lucas new post on Facebook?"
"Yeah, his parents found it."
"What a fucking twelvie!"

by ThotHoe March 5, 2017