better than what 50cent did

Are they part of verbal language? No...but they are a part of symbol language--which is every type of language that exists, even written symbols (Which generate their own by italics and exclamation marks, etc.)

Now you know--this PSA brought to you by 50cents and Lawdeedaw...now lets toast to the good life.

Yeah it pisses me off too. I'm a homebrewer and once you find out you can make beers better than any store bought beer for less than .50cents a beer you tend to not want to pay for overpriced beer anymore.

Damn, kpop is actually trashier than 50cent. Who would've known? I still dig B3st though.

The description is slightly misleading. He's not drawing a panel - he's just inking a random sketch.
Second - he's not quite as fast as the video might make you believe. As he explained on the site, the video is played at 2x speed. The 8 minute video amounts to about 16 minutes of actual time. Still impressive, though.
(Oh, and the NSFW music is from "Q-Unit", a Queen\50cent mashup album.)