a raspberry ripple is when "muffin top" is not adequate. it refers to the rolls of fat in between a woman's bra and trousers, particularly when emphasised with a tighttop.
When your about to cum on her face then you punch her in the nose and she starts bleeding. You have a satisfying mixture of cum and blood looking like a raspberry ripple.
When a ladies time of the month dawns upon her mid-intercourse and you deliver unto her your cream, mixing the two viscous liquids, creating something resembling raspberry ripple ice cream.
Dude 1; "Hey Andrew my guy, I was laying serious pipe last night when my girl started her period. You know I hit her with that Raspberry Ripple."
Place lips on Vagina or Clitoris (or penis if you insist) then rapidly exhale through semi-open lips to create vibration of lips and cheeks. (like when you do an impression of a horse)but being careful not to blow air directly up the vagina. the vibrations should be pleasurable for your partner.
Repeat until satisfied.
Girlfriend: "go down on me baby"
Boyfriend: 'giving the Raspberry Rippler'
Girlfriend: " OOOH that feels SOO GOOOD"
Girlfriend: "aaahh ahhhh (orgasm)"