And since kinde-garten I acquired the knowledge
And after 12th grade I went straight to college

from Run-D.M.C. – Sucker M.C.'s Lyrics on Rap Genius

Meaning

there always has been a common misperception that rappers are uneducated and/or not interested in obtaining higher education but Run-DMC and many other rappers did very well in school and furthered their education after their required attendance was complete

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