Combination of supreme and premium. Means good, excellent, paramount, top notch, etc.
Person A: "Dude, man, that band was supremium."
Person B: "What the fuck did you just say? What are you, an idiot?"
The California-born, politically correct alternative to and/or replacement for the word "bro". Although the target of reference is usually female, it is perfectly acceptable to address a subject of any or unknown gender, as the word itself is unisexual and non-descriminatory vs male, female, or other.
"It ain't no bro; it ain't no sista; it's'a brosis, brosis!"
Man: "Dude, man, brosis, that ass is 'hella dank'. I'd hit it like an abusive husband."
Response from woman or subject of unknown gender: "Fuck you, pig! But I appreciate the fact that you did not call me bro, my bro."
Acronym for Read The Fucking Blog. The acronym some pretentious asshole uses when a friend asks him about a recent event in his life. An event about which he obviously and even more recently blogged.
Friend: "Hey what's up man! How was the hiking trip?"
Asshole: "Didn't you READ MY BLOG??"
Friend: "Your blog?"
Asshole: "Yeah man, like, RTFB!"
Friend: "What the hell are you talking about?"
Asshole: "On my MySpace."
Friend: "MySpace is gay."