First of all, it’s very clear to hear that Lil Wayne is high on this track. He’s one pill away from OD'ing (overdosing), so it means there’s one pill left (drugs) until he suffers an overdose. He’s admitting that he’s addicted to pills and takes too many drugs tho'…

If you usually beat a pussy up, it means that you’re having some strong sexual contact with your genital with that pussy. Busta Rhymes prefers to perform that action with the Battlescar;

The Battlescar is a designation used for a battlefield in Southern Barrens. The eastern side is occupied by the Alliance outpost of Fort Triumph, while the western part is held by the Horde outpost of Desolation Hold

Busta Rhymes warns all his competitors to leave this room, cause once he gets on the mic, he’ll spit fast and hot fire which causes some real danger.

You don’t really wanna be such a physical victim, do ya!?

After the hot and fast first verse he did spit, Busta Rhymes gives y'all time to calm down after this hurricane of rap. The Clap, clap, clap, clap, clap is related to the beat, where at this time different claps appear (in rhythm to Busta). Let’s Go! might be referring to his song Let’s Go where he’s featured by Travis Barker.

Here Chris Brown just takes shots at the main meaning of the song again; why stop now if I still can get more? I made it, I own millions but I still want more, why should I stop if it could keep going?

In line with Childish Gambino referring to himself as a “black Kennedy,” Camelot probably refers to his version of Camelot, which is what they called the Kennedy Presidency.

Jay-Z refers to the Spanish party-island Ibiza, where you only smoke, drink and fuck all day long. He claims that he smokes only there, since everyone does at this place. But I mean, who wouldn’t do it at such a place?

Jay-Z just don’t care what the hell you’re gonna say;
He blocks your hating comments on him and ignores them plus you totally. So don’t even try!

This is a reference to the last two lines;

You help a nigga once and he’ll probably forget it,
You help a nigga twice, you’re officially his crutch

(Here again the meaning of them):

If you help somebody (such as your friend) once, he doesn’t even appreciate it and forgets it really soon. So he doesn’t even really care about your good action.

If you’ll help him another time (twice or even more), he acts with you like you’re his slave and he’ll have only expectations from you.

So now, when he grew up, Ab-Soul understood the meaning of appreciating.

Back in the days, when Ab-Soul still was a young guy, he probably started writing freestyles in his notepad (some lines), which also might have included some lies about people, actions, etc..