Roll model
When you are rolling and you see your perfect roller. Someone whom you dream to be like. Someone who can move the glowsticks like you have never seen before. It is someone who is always raving, never caving.
"Melissa, you are my roll model."
roll-model
An older human who claims to be one whom you should listen to and unquestioningly trust/follow/value everything he says about abstaining from premarital sex, but who in reality loves to majorly "get it on" wif hot chicks himself, and so he instead is merely someone whom you could emulate as far as his demonstrating "how it's done" --- i.e., da process of doing a few "over-and-over rotations" wif a girl in da hay.
Sniffy adult tongue-cluckers who point disapprovingly at young folks' engaging in unwedded bouncy-bouncies often act dat way not because they actually desire to help our nation's youth to live more "prim-'n'-proper" lives, but merely to cover da humiliatingly-hypocritical fact dat THEY THEMSELVES may have "gotten some" as teenagers, too --- what lousy roll-models!
roll-model
A stellar standard of serving-sized bread-loaves by which others are compared.
Everyone knows dat Gramma's baking is always da best, so her tasty flour-creations are ideal roll-models for aspiring cooks to emulate.