When a woman farts during the course of anal sex.
The ground shook up something mighty as my wife's ANAL EARTHQUAKE destroyed the bed.
by F John Stank June 29, 2008
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A period of unease preceeding a large earthquake. This is not a scientific term, although heat and humidity have been said to preceed major earthquakes.

The term can also be applied to tension between friends, possibly preceeding a fight.
"What's with this heat, man?"
"Earthquake weather."
by David. April 2, 2005
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Used after potentially experiencing an earthquake, often posted on Twitter or Facebook statuses.

Can also be used through instant/text messages.

Originated in California's SF Bay Area.
Person 1: What the Earthquake?! Damn, did you feel that?

Person 2: Dude, I just moved to Colorado remember? I have tornadoes, loneliness, and other stuff to worry about.
by agtin January 8, 2010
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A sexual finishing move executed most effectively from the missionary position...

The man, or rather barbarian, extends his two arms above his head and links his hands together as if around an axe handle. Then, while simultaneously releasing both his seed and a thunderous roar (RAAWWWRRRRRR!), drives his double-fist straight through his lover's collarbone.
Robert Downey Jr. is off the wagon and dropping SoCal Earthquakes like it's noone's business!
by jiggity jash January 18, 2011
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wen facebook starts freezing,jamming and fb chat crashes every other moment!
fuck man! fb earthquake all over again!
by nikbegins January 20, 2011
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An Earthquake vomit is when there is a swarm of earthquakes in one region.

Pronunciation: bchgrughrughruch.
Wow, did you see that earthquake vomit that happened yesterday? It looked fascinating!
by renseke October 21, 2012
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The act of punching some one directly in the mouth as hard as one can imagine. You must call "Earthquake Punch" before you punch, as if you do not, the Earthquake Punch will not be as powerful.
"That kid is such a D-Bag"
*walks over to the kid*
"EARTHQUAKE PUNCH!!!"

*punches kid very hard in the mouth*
by 1j1l2s3 October 16, 2010
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