When you give oral stimulus so vigorously that you end up being unable to speak for three days, likeAriel from The Little Mermaid. Just with more oral sex.
1: Hey, why's your girl not speaking?
2: We got a little intimate and she gave the reverse little mermaid, if you catch my drift
To finger a girl on her period, (clunge being the ocean, body being the land) pull your fingers out an walk them up her body to her chest. Do a little jig with said fingers then ram them up her nose flapping around like a fish out of water!