when the lights go down freaks come out?

The phrase "when the lights go down, the freaks come out" suggests that people often reveal their true, more adventurous or unconventional selves when they're in a more relaxed or secretive environment, typically at night. It implies a sense of liberation and the idea that social norms may be abandoned in the dark. This theme is often explored in music and pop culture, highlighting the contrast between daytime propriety and nighttime revelry.