A Brazilian is a shaved female sex. Totally shaven, or sometimes leaving a thin line of hair up each labial lip, to give a good bikini line.
A Brazilian Scuba Diver is anyone that likes to practice oral sex with a female that has a Brazilian cut. Someone who relishes the thought of sexual activity involving a shaved, or otherwise hairless, vagina.
Man, with a bikini line like that she must be going out with a Brazilian Scuba Diver.
Man when I see a piece of Brazilian coastline like hers I gotta big urge to ask her up front if she wants me to dive in and explore her depths