Tha Carter III

Lil Wayne
Got Money
A fellow glares menacingly in my direction, but this of no concern to me because I am amply protected by my entourage and/or bodyguards.
kingcobra
3 Peat
in addition to creating supporting roles for his friends, Adam Sandler also starred in a film called "Click"
ilyvak
Let The Beat Build
Blue Bayou is a water park in baton rouge Lousiana
Alden501
3 Peat
Actually this line is more likely to be in reference of the fact that Adam Sandler is known for putting his closest friends in his movies. So Wayne's saying he's always looking out for his clique like Adam Sandler does.
Jamesterific
Mr. Carter
"I got the floor" is a way of saying he has everyone's attention (the way a public speaker has "the floor" when addressing an audience). But he wants to do better than that; Lil' Wayne wants to be on top (on the "roof") of everything.
Oslo15
A Milli
venereal disease refers to the fact that his lyrics are "sick". See my other explanation for the second half.
Tenshi
A Milli
The line is "like a menstrual I bleed through the pencil and leak on the sheet in the tablet of my mind" and is a metaphor for writing lyrics in his head,compared to the female menstrual cycle.It also sounds like "minstrel" which was a medieval songwriter
Tenshi
A Milli
Lil Wayne is referring to taking a hit of Marijuana smoke that is so thick and void of oxygen it is like breathing in higher altitudes where the air is so thin you feel like you are choking.
x6ryan
Let The Beat Build
It's a play on suicide doors and the fact that he says his rims are so big his car is two stories.
passtheflask
A Milli
in the pen sharing showers means in jail because prison is often referred to as a pen and they have communal showers.
sirwerd1