I'm the baddest in the school,
When Nicki started in Young Money, she was being “raised” or taught how to rap better. She was better than the rest of the rap bitches.
It may also reference how teenage girls fear the more popular girls in a school. In the previous line she also states “I go to Hill Mane” which is a fictional school.
To help improve the meaning of these lyrics, visit "Itty Bitty Piggy" by Nicki Minaj Lyrics and leave a comment on the lyrics box