Waka Flocka Flame -- I've Already Got a RAP NAME for Amanda Bynes

Aspiring rap star Amanda Bynes doesn't need street cred, 'cause she's got something way more powerful -- DISNEY CRED ... this according to her new hip hop partner Waka Flocka Flame.

WFF was heading into the WME agency in Beverly Hills yesterday when we asked about his plans to help launch Amanda's rap career into orbit.

FYI -- Bynes was a Nickelodeon star, not Disney, but we think we get Waka's point.

According to Flocka, things are going so well ... he's already given Bynes an official RAP NICKNAME!!