A sexual act in which the male gyrates his pelvis in a rotating motion while recieving oral sex.
"Dude, last night I gave my girlfriend a seismic toss while we were listening to Prince!"
"Niiiice."
by Master Machoke February 13, 2009
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The act of BBW women bouncing 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 Tossed Tiffany it was like a 9.8 magnitude earthquake on her buttcheeks"
by GenralGrave June 28, 2015
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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 Tossed Tiffany it was like a 9.8 magnitude earthquake on her buttcheeks"
by GenralGrave June 27, 2015
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