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

Twelving

The act of faking being high. Pretending and acting like you're high when you really aren't.

Yo Josh is so stoned right now!
Nah dude he only took one hit he's twelving.

by youalreadyknow892 July 8, 2012

twelvish

Twelvish mean that more than 3 police officers are patrolling a small area of the community

Also where there is a massive amount of police officers are out and about.

Dj: Noah it's hella twelvish today .
Noah: hell yea

by Prince_miguel27 March 23, 2017

twelvie

someone who walks around with an iPod, pretending its a phone

Mia is a twelvie, even tho she isn't tweleve.

by bringbackthestrawssupporter September 10, 2018

twelvie

a person of the opposite sex who is noticeably younger than yourself, often caught checking you out. Usually they appear to be twelve years old, hence the term twelvie.

That twelvie over there was totally checking you out. You're old enough to be his aunt or something.

by mllelanoir September 7, 2007