Originated in the song “Raspberry swirl” by Tori Amos and used by the singer as a metaphor for Cunnilingus
. The raspberry symbolises the clit because it resembles it (sort of) and you make it swirl (turn in a twisting or spinning motion) by using your tongue.
“If you want inside her, well boy you better make her raspberry swirl”
Tori says about the song: “Eating pussy is a metaphor... it’s about crawling in their, being with their juices, really being with them.”