Jessy Lanza is a Canadian electronic singer and musician from Hamilton. She was recognized as one of XLR8R's "Discoveries of 2013." Having studied piano and jazz, Lanza stated that her songwriting was particularly influenced by Missy Elliot and Timbaland. "Slapped By My Life" is a bittersweet anthem dedicated to Jessy's husband. Musically, the track leans towards a more dancefloor-oriented, playful, and airy sound, with a fast tempo of 158 bpm. The "Existential Edit" version goes even further in this direction, emphasizing rich and captivating synthetic textures with accents and phrases that give it a propulsive bounce. Lyrically, the song oscillates between open love, gratitude, and uncertainty, and represents Jessy's simplest, most direct, and personal writing to date, co-produced by Pearson Sound.