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A unique defecation situation which is characterized by the rapid release of waste from the person's bowels-due to abnormal relaxation of the intestinal muscles, a chemical inbalance in the intestines and surplus gas buildup.

Due to the rapid release of fecal matter from the bowels, the proverbial plug of this high-pressure system is removed. What ensues is a wildcat release of pressure which is manifested in the form of flatulence that is extraordinarily foul, putrid and in most cases, loud.
"Thunderturds. Because after a lightning, there's thunder."

"This is the Center for Disease Control, Johnston's got thunderturds again, quarantine the area."
by JismJuice2000 May 07, 2004
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Defecation accompanied by loud and evil-smelling flatulence.
Stay out of the toilet for a while folks, Kevin's got thunderturds again.
by Dunky Oggins November 18, 2003
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Nuggets that are so hard to get out, one must let out a thundurous roar to help the nuggets fly from ones ass
Damn, joe must have the thunderturds cuz he is yellin!
by THAPOOPMASTA February 16, 2004
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A type of large Ford coupe made off and on between the mid-1950's and mid 2000's
A 1994 Ford Thunderturd with cold A/C and power everything.
by boobla boobla September 12, 2009
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A shit that uses as much force as thunder, and sounds like thunder.
Jamies had a thunderturd.
by cartman5000 August 11, 2004
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