All this shit I spit so sick, and my pockets got the mumps
Sick as in cool, and mumps is an illness. So he’s saying his money is so sick (cool), it has the mumps.
also when ppl get the mumps their face swells he could be saying that he has so much money his pockets swellin'
To help improve the meaning of these lyrics, visit “Stunt” by 2 Chainz (Ft. Meek Mill) Lyrics and leave a comment on the lyrics box