one who is screwed, make a regrettable mistake.
from nas saying he backed ja rule in the 50 cent/ja rule beef, only to have ja rule turn around and diss him, leaving nas screwed on both sides.
guy a: 'ha ha look at that fugly heiffer!'
guy b: 'thats my mama'
guy a: 'oh no, i justdropped a nas!'
Definition:
The buttocks (The two fleshy parts of the body posterior to the hip joints) appear to blend into the posterior muscles in the leg, resulting in comments such as "no ass" or "flat ass"
dude1: hey, she's got a severe case of NAS
dude2: yea shit
dude1: i'd still hit it
dude2: yea with a fuckingnailed bat
He's one o the most qual rappers around, he delivers some phat beats n rhymes in his songs not 2 mention his amazin lyrics. He's got loadsa albums in da shops, one o his best is god's son wivout a doubt! rest in peace ill will.