Niggas know I'm sick, I don't spit, I vomit, got it?
Since Wayne is “sick” (meaning “talented”) he vomits out rap lyrics (just as you vomit out food when you have a tummy ache)
Normal rappers “spit” raps (typical slang), so to vomit means you are spewing a lot more content! (thicker too)
To help improve the meaning of these lyrics, visit “Cannon” by Lil Wayne (Ft. Detroit Red, Freeway & Willie the Kid) Lyrics and leave a comment on the lyrics box