As I go down, you gon' realize that
See when you run up in my face you able to get smacked, jacked, just
Like that
I'mma fool, break the rules, damn, way too cool
They call me Snoop D-O-double-G (na, na, na, na, na, na, na, na, na, na)

from Snoop Dogg (Ft. Fiend & Mystikal) – Woof! Lyrics on Rap Genius

Meaning

Repetition is the key to education.

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