What is Gallerina?
1.
The waif-like girls in opaque tights who rule the art galleries in Chelsea and other art districts. Like ballerinas, they are generally delicate-looking, coiffed, and can come off as cold.
As we perused the art, we tried to avoid the gallerinas.
See
2.
young woman receptionist in a gallery, essentially a gallery ballerina. essentially a slur indicating her youth, inexperience and lack of justification for having attitude while working a menial job, from 'sex in the city'
I'm not going to let some little gallerina make me feel like an idiot for not knowing what gaklyd is - look sweetie, you're just a clerk.