These niggas sweet as perfume to me

from Lil Wayne (Ft. T.I.) – FuckWitMeYouKnowIGotIt Lyrics on Rap Genius

Meaning

People who are claiming to be hard and getting up in Wayne’s face, but are really soft and sweet inside. If you claim to be hard but are soft, then this is a weakness and a vulnerability, not a positive character trait.
Some perfumes have a very sweet scent, and is usually worn by women, who are stereotypically, not hard at all.

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