Somewhat of a homophone, since “Schwag” is a word for cheap, common weed
Also another way of saying he’s still rich and still relevant. Even though the “Bling” days of hip-hop are arguably over, Wayne and his father continue to live just as they always have, buying new watches and jewels regardless of what everyone else is doing.
It’s a common rap trope. At this time, only white men had been president, so the building’s paint seemed to correspond more with race.
380’s

P89 9’s

M10’s

M1’s

…and 12-gauges

“it’s jaw I bust,” meaning that he receives a lot of blowjobs
This should be “My brethren sling them packs and them bundles,” which is rendered in Weez-Patois as “My bred'dren sling dem pack an' dem bundle”
Could also be a Cadillac Coupe De Ville.
The aftermath of a handjob would be semen, which somewhat resembles hair relaxer, as well. Nice double entendre.
4/4 is a very conventional time signature, so this line is meant to contrast with the second meaning of the “drastic measures” mentioned in the last one. In this case, drastic measures would be something unusual, like 13/8.
If it’s a playful subliminal toward Tyler, it would make a lot of sense. This line seems to correspond with the first, spoken lines “Aw, nigga thought he killed me? All right, that’s cool, we’ll see.” Earl is chastising Tyler for stabbing him in “Couch,” and telling the listener to let him know that he’s come back to life.