A girl who dresses in latex.
Latex is her fetish.
She does this in secret, but will often use it to tease a selected few.
A jalex looks good in latex and knows it!
When trying to picture a jalex, think of Hermione Granger dressed as Catwoman.
"That girl is wild, bet shes a jalex."
"I gotta hit that man, i can swear shes a jalex and its hot!"
"she's playing all hard-to-get, but i bet she really is a jalex"