Former "MADtv" star Aries Spears has unloaded a flurry of disses directed toward G.O.O.D. Music affilaite 2 Chainz this week, calling out the rapper's lyrical wordplay and content.

2 Chainz is not that different ... he's just another TERRIBLE rapper ... this according to former "MADtv" star Aries Spears. Spears was walkin' around NYC yesterday when we asked about the current state of hip hop -- and for some reason, AS unloaded on 2 Chainz. "I think 2 Chainz SUCKS," Spears said ... adding, "Have you heard the lyrics? All I want for my birthday is a big booty ho? Get some better rhymes 2 Chainz." (TMZ)