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When you stick your tongue up someone's bumhole and they let one rip so hard your tongue wiggles like Jell-O. If it's a shart, you get extra chocolate because it's like a bonus snack.
I did a Galaxy Ripple and got a shart. I ate the chocolate like it was gold.
My buddy stuck his tongue in my bumhole and I blew a fart so loud it echoed in the hallway.
At the bus stop, I did a Galaxy Ripple and my friend laughed so hard he fell off the bench.