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2.
noun, an anal dilator

This is a dowel inserted in the anus in order to dilate it so it becomes more adequate for anal intercourse. According to some sources, it was very common in the 18th century. The most used synonym is buttplug.
Her well-trained shitter winked at him and he plunged the dirty assplug into her.
With trembling hands, she gingerly picked up the tube of lube and then the assplug by its base.
by Tiago Zuhr August 17, 2008
 
1.
noun, an anal dilator

This is a dowel inserted in the anus in order to dilate it so it becomes more adequate for anal intercourse. According to some sources, it was very common in the 18th century.

See also: arseplug, buttplug.
Her well-trained shitter winked at him and he plunged the dirty assplug into her.
With trembling hands, she gingerly picked up the tube of lube and then the assplug by its base.
by Tiago Zuhr July 22, 2008
 
3.
Plug placed in ones ass after severe ass ramming to keep fecal matter from exiting unbenknowst to the fag that got rammed in the ass too hard.
Chris got rammed in the ass so hard that he had to get a box of double X ass plugs to keep his hershey squirts from squirting all over his crab collection.
by Yo mamma February 26, 2004
 
4.
An insult, probably refering to a dildo or something to that extent.
John? That kid is such an assplug!
by Poopie Joe March 14, 2005