When a female in labor makes the final push to get the baby out, but lays a fart so long and loud it measures on the Richter scale.
Jesus, while Melissa was in labor with our son Jake and she made the final push to get him out, she dropped the loudest fart that had to measure on the Richter scale. It may have been the first ever Birthquake!
by Tee Cee Deez March 1, 2020
Get the Birthquake mug.
The contractions a woman feels when giving birth.
Woman: Dayum, when I had Chewbacca I thought I was going to explode with the birthquakes!
by BananaBurguer August 20, 2014
Get the Birthquake mug.
This happens when a fat bitch has a baby. Usually caused by a rift in the fatbitchtonic plates.
Nurse: That 'birthquake' measured a 9.8 on the richter scale,
Doctor.

Doctor: Doctor.

by gjkuol09 December 28, 2006
Get the Birthquake mug.
Shaking of a woman while giving birth equated to the tremor caused during an actual earthquake
She went through a birthquake before her due date.
by Jenn Regg January 16, 2019
Get the Birthquake mug.
When a women gives birth to a child that has a equal sized or larger head then she does
My wife is still in recovery from having a birthquake. My son almost broke her in half when he came out resembling a lollipop.
by ZSMC October 4, 2017
Get the Birthquake mug.
When a house or room shakes as a result of sex.
Ugh, Ben and Nicole caused another birthquake upstairs last night.
by Ben Cobbs December 17, 2013
Get the Birthquake mug.
An earthquake that occurs on one's birthday.
Danny: Holy cow, did you feel that? It's like the earth knows it's my birthday!
Alex: BIRTHQUAKE!!!!!
by juggleboy January 9, 2010
Get the birthquake mug.