Yes it's me, the B.I.G
Competition ripper ever since 13
Used to steal clothes was considered a thief
Until I started hustlin on Fulton Street

from The Notorious B.I.G. – Guaranteed Raw (Demo) Lyrics on Rap Genius

Meaning

Hes been killing cats in rap battles since 13 and he use to steal clothes until he started selling drugs now he can afford them

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