According to most urban dictionary’s spinner describes a woman who is so petite, that a man can spin her in circles while she is mounting him. Although that particular description is not why I enjoy a spinner, I just really enjoy a petite woman. Anyway, I take from the description that a man can spin her because she is so light, not that a curvy girl can spin herself because she is agile. I have yet to find that description in any urban dictionary.
if I went to see someone based on someone telling me that they were a spinner but they ended up being curvy but agile, I’d feel truly misled. But as Greenteal pointed out, you find ppl with similar interests which does help. There are a number of members on this board I consistently receive accurate descriptions from, but some I’m like wtf...really? Words like; sexy, hot, beautiful, are all in the eye of the beholder, but words like;slender, spinner, curvy, perky should have some reasonable degree of accountability! But yes, multiple reviews, private messaging for specifics and building a circle of members you can relay on are all important.
https://www.google.com/amp/s/www.urbandictionary.com/define.php%3Fterm%3Dspinner%26amp%3Dtrue