I'm super psychedelic
I'm smokin' weed with the fairies

from B.o.B – My Sweet Baby Lyrics on Rap Genius

Meaning

Like many other rappers, B.o.B is a tree inhaler.
Psychedelic states are an array of experiences including changes of perception such as hallucinations, synesthesia, altered states of awareness or focused consciousness, variation in thought patterns, trance or hypnotic states, mystical states, and other mind alterations.
So basically he’s saying that he’s smoked so much weed that now he’s smoking with fairies, (he’s hallucinating)

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