On “SAD!” X laments about the struggle of letting go of a loved one and the feeling of depression that follows.

He details emotions of uncertainty surrounding a specific relationship. He is insecure and heartbroken due to the fact that his girlfriend had left him, bringing about a melancholy vibe.

He also brings up suicide, a subject often discussed throughout his discography. For example, in the song “Jocelyn Flores” from his 2017 album, 17, he raps about a friend who suffered from depression and eventually killed herself.

This song was frequently teased as an intro of X’s gaming videos on his YouTube channel prior to its release.