15
When a women's thighs are still shaking after sex due to the girth of the penis that was just inside her.
by That_0ne_dude October 20, 2019
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16
When a mans flatulence moves forward instead of back or straight out the cheeks and causes his genitals to vibrate
"Man this leather seat just made me have a girth-quake"
by LolaBunnyyy August 21, 2018
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18
A male appendage so tectonic that it ruptures the uterus, causing the female to tremor as her plates separate, submit or push together
Her tectonic plates ruptured as his magnitude 7 girthquake entered her

She trembled as she tried to squeeze the girthquake sized butt plug out of her sphincter
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19
the shuddering that a thick woman's body goes through during vigorous sex.
i was so amped on getting with bertha last night that she experienced a full-blown girthquake.
by squoze.lemmins September 06, 2009
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