The act of BBW women bounding her ass on your tongue in such a rhythmic motion that it looks as though there are seismic waves on the surface of her posterior.
Sentence: "When I Seismic Salad TossedTiffany it was like a 9.8 magnitude earthquake on her buttcheeks"
The Dutch Salad is a sexual maneuver that is the combination of the Dutch Oven and Tossing ones Salad. Specifically it is when one eats out another's ass, then has a blanket pulled over them to trap them in the act, then gets farted on.