I was tryna hit it and quit it
But lil mama so dope, I messed around and got addicted

from Katy Perry (Ft. Juicy J) – Dark Horse Lyrics on Rap Genius

Meaning

She started as a one night stand, but she was so hot that he couldn’t leave her — she doesn’t sound like the normal Juicy J girl.

Note the drug-metaphor. The previous line says: “Her love is like a drug” — and here he says she “so dope” and he “got addicted”. This girl clearly got a hold of him — it must be the trippy chick

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