Doin' Twelves

When one masturbates twelve times, in succession

A: Hey, what you doin?

B: Doin' Twelves...

A: I'll check back later.

by Nomisplay November 5, 2011

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

Twelfies

A Twelfie is name of the act where a twelve-year-old takes a selfie and uploads it on social media.

My feed is full of fucking twelfies!

by The Banterlord April 15, 2016

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