Lounging black, smoking sacks up in Ac's and Sidekicks
With my sidekicks rocking fly kicks

from The Notorious B.I.G. – Party and Bullshit Lyrics on Rap Genius

Meaning

Biggie would smoke weed in an Acura (Ac') or a Suzuki Sidekick, both of which were popular Asian “rice-rockets” of the day

His boys would wear “fly kicks” (cool sneakers), which is important if you live in NY and are cooped up smoking weed in your buddy’s car

To help improve the meaning of these lyrics, visit “Party and Bullshit” by The Notorious B.I.G. Lyrics and leave a comment on the lyrics box