Fans had already guessed the song had a saucy meaning, with Urban Dictionary revealing that the term “watermelon sugar” refers to oral sex. However it can also be used to refer to heroin, according to the online slang dictionary.
Fans have also guessed that the song was written for his ex-girlfriend Camille Row who once mentioned during an interview that she loved the 1968 book In Watermelon Sugar.
People took to Twitter to share their excitement about having their hunch proven true:
harry: watermelon sugar is about the female orgasm