"What's good, Mang? What are you up to"
"Ah nothin just over here Mad Maxin, Bro."
Is where a person is unknowingly a fuckboy yet goes around calling out other fuckboys and saying how much of a fuckboy they are while being a fuckboy.
"He's a fuckboy and doesn't even know it yet. He's stuck in 3rd Person Fuckboy POV."
Somewhat like the word "Posted" which can translate to "not available" Yosted simply means somewhere but available and down to chill.
"Where you at?"
"At my Pad Yosted looking for something to do."