Whether they should be 5'3" and under or no bigger than 100 lbs., what one considers a "Spinner" can vary depending on the individual or even the regional location. Another term I have recently noticed is "Stacked Spinner"; a descriptive that seems to define the "Spinner" who instead of looking like the typical slender ballerina, possesses a few more curves.

The term comes from the vision of a pretty little thing riding our cock and being able to spin around completely without withdrawal. Usually, it's more petite girls or tiny girls who can pull off that trick.  

Sure different people have different interpretations, but generally it's considered for a short and thin girl. I don't think a short thick, or tall thin girl can be a spinner.  
To me it's someone right around 5' and 100 lbs.
(Say 4-9 to 5-3, and maybe 85 to 105 lbs)

Interesting, I don't label myself as a Spinner because I always felt like one has to be skinny with a boyish figure to be labeled as such.  
I am from the Ivory Coast (Côte d'Ivoire), a former French colony.

I wonder if I would fit under that, being 5'4" & 115lbs? I'm more on the curvy side as well but still petite...

I've been referred to as a spinner, but I definitely wouldn't describe myself as such. I suppose everyone has their own idea of what qualifies a spinner. In my mind a spinner is a tiny thing; 5'3 or below and barely 100lbs. Judging from your photos, it's clear that you have a feminine physique, but still what I'd consider a cute little spinner body.

Small and thin. About 100 lbs and around 5' to 5'3" at the most. Petite is the big factor IMO.  

Posted By: erinbradford

Whether they should be 5'3" and under or no bigger than 100 lbs., what one considers a "Spinner" can vary depending on the individual or even the regional location. Another term I have recently noticed is "Stacked Spinner"; a descriptive that seems to define the "Spinner" who instead of looking like the typical slender ballerina, possesses a few more curves.  
   
 As you can probably tell, I am relatively new to this world; therefore I have yet to have a personal definition set in stone.  
 Now, I am looking forward to your definitions. Both Gents' and Providers' participation is welcome.

Every girl is a spinner

That's always been my understanding of it as well.