When a woman with shape moves her hiney in such a way that causes male arrousal.
This term was brought into common use with the Dr. Khan & DJ Bouti music video titled "bootyQuake".
Search for "bootyQuake" on www.youtube.com for Dr. Khan & DJ Bouti's music video.
A stupefying experience of so many booties dancing at one time that it feels like the ground is shaking
Bootyquakes were started by DJ Marcus Aurelius and his Havana summer parties, remixed by the Foreign Footprints podcast, and copied by many others across Taiwan
Rica: Did you feel the ground shake?
Marcus: Oh yes. That was a bootyquake that measured 7.2 on the Aurelius scale because all the dancers wanted to get free tickets to the Resurrected Halloween party
The Massive uploading of pictures of women showing off cleavage or exposing their breasts to a hosting service, such as Tumblr, Blogger, etc, in a consistent and timely manner.
Tim: Dude, you have uploaded quite a number of boobie pics
Dude: Thanks - It's an impressive Boobquake, isn't it?