He’s under the influence (fifth of the crop {weed}, liq and pop).
While high, time flies by and and his mind drifts and starts thinking of weird stuff…like drive-bys. Even he wonders why he is thinking of such.

He’s a lyrical assassin (common hiphop phrase) is also hysterical and terrible black ski mask'n. and supplies what you need.

At first appears that he is mentioning crimes. being an assassin, black ski mask'n and “supplies what you need”.
but can be looked as…

“lyrical assassin” (kills his lyrics)
“hysterical ass” (extreme emotion in his lyrics)
“black ski mask'n” (connects with lyrical assassin and pretty sure assassins where masks)
“supplies what you need” (brings that “dope” lyrics when you need em)

So he might be saying that he has a dark side (the crime) when doing what he does best (making rhymes). Which he has said before in a previous song “ So if i keep making this sad cryptic rap shit…”

Closes out with wordplay as the beat fades
“I WILL SINCERELY take your DEAR like a G and you aint even LET HER”

“let her” is word play for letter. He is saying that even though you been guarding your girl, holding her down, and wife'n her he still seems to get her. (build off last line “imma thief imma robber”)

A Will is generally in the form of a letter
Sincerely is a closing of a letter
Dear is prior to the body of a letter
G…is just a plain ole' letter

Wordplay on the words “do little”. Remember this?

In his relationships he seems to always not do well in them and always seems to be in conflicts.

Another word play and metaphor saying “…always fighting like well managed boxers” Well managed boxers always have a fight set up, guess his relationships are horrible.

Clever wordplay usage here.
Builds off last line about the accord.
He is saying he rides for his and everything he supports in music. He also never dodges challengers which is a type of car…Dodge Challenger.

Mentions guns blasting in traffic building off previous. He is stating here that karma comes back around if you do those type of things. He is wondering if he has “struck a cord” which is word play for Accord. (a type of car, Honda Accord). He mentions prior that the situation is in traffic…with cars. tying it all in.

Magic Johnson has AIDS and even though all the woman might want him sexually, if a condom busts while with him you may have some problems.

He feels like he is a great artist from N.C.
and if you disagree you can try him on that.
All so uses word play with come an see (Come N.C.)

He is saying that he is doper that Brittany Spears and Whitney Houston, who both were known for using drugs/dope.

The next line builds off the last line by using the last names of Brittany and Whitney saying that He is dope with music and will come attack you and goes for the gold.

Also is a diss to a Texan artist he has beef with.