The track first appeared in Touhou 6: the Embodiment of Scarlet Devil, which would become the game that gave international success to the Touhou Project series. It is the theme of the Stage 2 boss, Cirno, who debuted in that game.
Cirno would prove to be popular among the new Touhou fans, and in particular two remixes of her theme, "Cirno's Perfect Math Class" by IOSYS and "Chirumiru Cirno" by Conagusuri, achieved memetic popularity reaching outside of the Touhou fanbase. Due to this and other popular memes related to Cirno, she and her theme are some of the most widely-recognized elements of Touhou.
On SiIvaGunner, "Beloved Tomboyish Girl" is often used as a melody change joke. It first appeared on the GiIvaSunner channel in the rip "Unfounded Revenge - MOTHER 3" on March 5, 2016, and has appeared in over 50 rips since.
It is the third-most-recurring Touhou-related joke on the channel, behind "Bad Apple!!" and "Hate not the Wind, Spring Blossoms ~ Eternal Wind". Cirno as a character doesn't commonly appear on the channel, however, as Touhou is usually personified as a singular meme represented by Reimu or ZUN.