size me up 

when someone wants to fight you and to basically get on their level; usually said by someone bigger to someone smaller (in height)

boy: I know you aint messin' around with my girl
2nd boy: wanna fight me for it? let's go, size me up!

size me up by private.school.h0mboi February 23, 2011

size-ist 

its when a person being really mean to someone whos like really short or fat or tall or skinny.

dude: omg that guy is like soooo totally short
chick: omg your a size-ist!!

size-ist by apple face May 21, 2009

size zero 

American clothing size designed for the food dodging elements of western society. Is the size a normal 8-10 year old would wear. Partly a creation of vanity sizing where clothing sizes are adjusted to fit the vast majority of fat asses that make up the population.

Posh Spice has the body of an under fed 9 year old she is a dress size zero

size zero by dr_esteban September 16, 2006

Size 10 steel-toed enema 

To take your size 10 steel-toed workshoe with your foot still in it and stick it up someone's butt.

How would you like a size 10 steel-toed enema?

Size 10 steel-toed enema by PeeBee February 13, 2004

size zero 

skinny models that designer Victoria Beckham specifically banned from walking in her Spring 2011 catwalk presentation because she wants to be the only skinny bitch in the world.

Victoria sitting in the audition room, one skinny mode walks in, she whispers "omg who's that size zero bitch? is she skinnier than me?" then she yells "you're out skinny BITCH!"

size zero by Rony911 September 18, 2010

Size Zero 

Officially defined as a measure of clothing size. Size Zero measurements are as follows:

Bust: 32"
Waist: 24"
Low Hip*: 35.5"

* Defined as 9" below the waist

Primarily aimed at fashion concious parents of 8 - 10 year olds, who'd like their daughters to grow up fast and be "perfect".

The Size Zero fad has caught on with celebrities, Posh Spice being the most favoured example. When reported in the Tabloids the Size Zero fad is typically considered with distaste.

Unfortunately, impressionable teenagers - primarily females - are being caught up in the Size Zero fad, trying to follow after their heroine's footsteps.

Most respectable dieticians are known to believe that being a Size Zero is unhealthy, will shorten a persons life span and has been linked to osteoporosis.

You will find that while some men prefer Size Zero women, most do not; frequently referring to them as "far too skinny". Men like curves girls, know it.

Examples of Size Zero celebrities:

Posh Spice
Lindsay Lohan

Size Zero by Tortured_Soul December 9, 2008

size up 

When two men are engaged in a heated argument and it is clear no resolution will be made, one male will say "size up", prompting both participants to expose their penises. The one with the larger penis wins the argument by default simply because his penis is larger. No exceptions.

Male 1: "Dude, you're a fucking dumbass, McDonalds is definitely better than Wendy's."

Male 2: "Um, are you fucking kidding me, Wendy's is 10 times better."

Male 1: "Size up"

Male 2: Alright, fine, McDonald's is better.

size up by VillanovaJC March 30, 2011