Twelving

To stand a motorcycle or other vehicle straight up in the air, front over back.

In motorcycle stunting, pulling a wheelie so high that the bike rests on the it's tail section is called a "twelve o'clock". The act thereof is called "twelving".

by ThrustinJ August 12, 2007

twelvie slut

Twelvie slut:
A person beetween the ages of 12-15 that cakes on makeup, sleeps around, sens nudes, is a total love slut, fakest bitch out. Biggest, attention seeker you will ever meet, and the type of person, who posts all their gifts and ritches all over social media, they think they're hawt, walk around acting like they were born perfect, horniest skaniest, bitch ever.

Person 1: dude, portias a total twelvie slut.
Person 2 : yeah, she's so fake brah.
Person 1: she's so much trouble.

by 0805xx May 11, 2014

Twelvie Season

School Holiday, vacation, when all the high school students go on break from school.

When all the Twelvies are out of school.

Friend 1: Ugh, there's so many people in the shops today.
Friend 2: Yeah, its Twelvie Season

by Squisheee October 26, 2014

Twelventeen

A twelve year-old girl that dresses like a whore.

Man, you were such a pimp dad when you nailed that twelventeen year old at my birthday party last night!

by Coli C. January 22, 2004

twelving

To 'space out'. Specifically the special sort of mental sluggishness brought on by watching television or any similar mental haze.

1: "Which street do we turn onto?"
2: "Huh? Oh, sorry. I don't know. I must have been twelving."

by Ninniane McFey October 12, 2005

twelving

The act of taking a solid 12 minutes alone and masturbating online.

E: Hey mate
E: you still here frend?
E: ..you been gone solid 12 minute, mate. You masturbating?

R: YES FREND I GOD DAMN TWELVING ALMOST DONE.

by kuack January 15, 2013

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