[10][11] Her first collection of short fiction, Felt in the Jaw, was published by Split Lip Press and received the 2017 Coil Book Award.

[13] Arnett's debut novel, Mostly Dead Things, which was published by Tin House in June 2019, was a New York Times bestseller and received critical acclaim.

[20] The book features an openly lesbian main character who runs her family's taxidermy shop after her father dies by suicide.

"[32] Screengrabs of the exchange have been widely reposted as a classic piece of digital culture and have appeared in the so-called Internet Hall of Fame.

[33][34] When a 6 ft (1.8 m) monitor lizard visited a convenience store in Nakhon Pathom, Thailand in 2021 and started climbing up the shelves heading toward the ceiling, the video was posted to Twitter and a user helpfully replied, "That's just Marvin, he likes the smell.