In the track's chorus, she sings about how she wants to be his lover, not someone who has to take care of him, such as a maternal figure.
She also sings about how he had ultimately lost large opportunities.
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New York magazine writer Willa Paskin observed that Perry did the obvious with the song's hook ("she used a common word for penis and made it mean penis! also discuss the strains his addiction put on both of them.
Perry stated that she wrote the song "about when you promise someone forever, but you end up not being able to follow through. Hopefully, the listener learns from hearing it and never has to say they had 'the one' get away." A remix of the song features Kanye West.
Musically, the track is an electronic and hip hop ballad influenced by drum n' bass, rave, and techno.
Lyrically, the song compares the feeling of being in love to the speed of a hummingbird's heartbeat.
The last track is "Not Like the Movies" a power ballad about a love relationship where a woman does not feel in love and still waits for the man of her dreams, or "charming prince", as a Terra reviewer put it.