A police officer
"Sorry dude, my bad, I'm ricky"
"Slow down there's a ricky RADARing and you're going 10 over the speed limit"
"Dude, put the blunt down, we're about to drive past a ricky"
Put in most basic terms, the perfect person.
Girl 2: "Oh that's Ricky, you know krb."
"Yeahh, he's so ricky!"