Battaglia wrote the song with longtime collaborators Michael Grant, Arianna Wilson, Jarreau Pitts and Trevor Pitts. The song's lyrics are based on a conversation that Battaglia had with some of her girlfriends before her 21st birthday. She explained on her Facebook page: "I had been talking to some of my friends about what we were going to do when I turned 21, and they were pushing for me to try a body shot. Later that day, when we were in the studio, I decided to see if I could capture what that experience might be like in a song. It was really fun to write and it already goes down a storm when I perform it live!"
What's a "body shot"? It depends who you ask, but you need two people to do it, and it usually involves tequila. One person puts some salt on their neck and a lime wedge in their mouth, then another person licks the salt, drinks a shot of tequila, and bites the lime.