the eiffel towerのようなどんな単語でも探してください。
When sitting on a couch with a friend you fart so hard it rumbles all the cushions on the couch. Resulting in a vibration under yours and your friends butt.
Friend 1: makes a loud rumbling fart on the couch

Friend 2: Hey what was that!

Friend 1: Sorry yo! You just experienced a california couch quake
solomynoloによって 2012年06月24日(日)