I'm sprung and I don't care
She ride me like a roller coaster, turn the bedroom into a fair

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

Meaning

It’s so hot and steamy, that the bedroom resembles a carnival because of the festivities and such.

Sprung — verb, being so much in love that you would do anything for that person, or thinking about them all the time

Also, the wordplay of “a fair” and affair: it’s no mistake that what goes on in the bedroom…stays in the bedroom.

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