The song was noted by several publications to mark Lavigne's return to the pop punk genre with NME referring to it as a 'pop-punk takedown of an ex', and Billboard describing it as a 'guitar- and drum-heavy track' which 'features Lavigne raging at her former lover for failing to treat her properly, promising that they'll always regret being kicked out of her life.' Release and promotion Lavigne also described the track as a 'super sassy' response to a romantic partner who realizes they made a mistake, only to be rejected when they attempt to reconcile.

Lyrically, Lavigne describes 'Bite Me' as 'an anthem about knowing your worth, what you deserve, and not giving someone a second chance who doesn't deserve you'. The song is written in the key of E-flat major, with a tempo of 170 beats per minute. 'Bite Me' is a pop punk song that has drawn comparisons to Lavigne's earlier studio albums Let Go (2002) and The Best Damn Thing (2007), as well as to the band Paramore. Producer John Feldmann, known for his work with bands such as Blink-182, All Time Low, and Goldfinger, meanwhile, confirmed to Wall of Sound that he had been working with Lavigne and that her new album would bring 'back her pop punk roots'. The following month, Lavigne confirmed on Instagram that she had finished working on her new album, and that she would release new music that summer. ' Flames', a Mod Sun song featuring Lavigne, was released on January 8, 2021. That December, Lavigne posted a photo on Instagram of her in a recording studio with Mod Sun and Machine Gun Kelly, leading to speculation that the trio was working on music together. While quarantined at home during the pandemic, Lavigne told American Songwriter that she had begun working on new music, which she hoped to release sometime in 2021. A European tour, originally set to begin in early 2020, had to be rescheduled for 2022 due to the COVID-19 pandemic. That September, Lavigne embarked on a North American tour in support of Head Above Water, her first such tour in five years. The album was inspired by the two years during which Lavigne suffered from Lyme disease, which left her mostly bedridden and unable to perform. Canadian pop punk artist Avril Lavigne released her sixth studio album, Head Above Water, on February 15, 2019, through BMG.

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