The "five" denotes the condition of a person having no property, no vocation, no spouse, no child, and no interest, hence five nos. The shorthanded term FINO derives from Spanish meaning "thin" but also "fine", which adds a sarcasitc connotation.
A phrase used to denote a girl with a large ass, who is either dressed trashy or doing trashy things. Typically used insultingly or condescendingly, though “all ass, no class” is undeniably attention getting.
Bro 1: Damn, look at her ass! You see that thing sticking out?!
Bro 2: Yeah, but look how trashy she dressed. She all ass, no class.
Bro 1: I don’t care about any of that - that ass is calling me!
Or...
Bro 1: Lisa’s too innocent for me. She’s always wearing sweaters when I see her. She just look like she no fun.
"No Sex Please, We’re Middle Class", is a way of denouncing the hypocritical predominant attitude against women´s sexual rights and prejudices, manifested on a regular basis through policy and social discrimination.
A: "Why the rejection by the Food and Drug Administration advisory panel of a female version of Viagra for women with low libido?"
B: Simple... "No Sex Please, We’re Middle Class."