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When a mother gives birth to multiple children that have obvious congenital defects (ie, siamese twins).
John: Did you hear about Sue. The gave birth to twins that each had one arm.

Joe: Yeah, fuckeduplets.
by The Screg June 28, 2007
1 3
The resulting horde of maladjusted fuckwits that will probably result when a woman goes through all manner of infertility treatments to have unnatural numbers of children she has no reason to believe she can care for.
Nadya Suleman just had another eight fuckeduplets.
by Mister. February 26, 2009
3 0