This emoji originally means 'parking,' but recently it's been used with other meanings. Since rapper Gunna's song 'Pushin P' became popular, it's also used to mean something positive or 'cool.'

Originally, it was just an informational symbol for parking. However, as the phrase 'Pushin P' in hip-hop culture came to mean positive slang like 'keeping it real,' the emoji's usage expanded. That's why on social media these days, it's also used to show off cool fashion or lifestyles.