The result of excessive booty-clappin goodness. Rates from 5 to 9 on the richter scale. Most recent account of an 'assquake" dates to Junes 24, 2012. JeneQua Jones III "stripper name - Seductive J" was in violation of excessive booty-clappin. 3 where killed in this incident.
Guy: "dude my girlfriend gave me a lap-dance last night."
Friend: "are you kidding me? thats awesome!"
Guy: "yeah she went so hard she caused an "assquake".
The act of lifting ones ass and releasing, causing the whole house to shake with fury.
"Oh my god we're under attack!"
"Why?"
"The whole house shook!"
"Is Kerryann home?"
"Yea, why?"
"It was an assquake... she's an assquaker."
"Oh I thought so."