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1.
Someone who is born as a twin that is attached to the other twin in some way. Over 50% of all conjoined twins die at childbirth. Many others don't live to be 10. However, doctors can seperate conjoined twins but the procedure is very risky.
Michael and Matthew are conjoined twins. They are joined at the head and may never seperate.
by Anonymous July 12, 2003
 
3.
Usually pertaining to a couple that is always together..AKA ct
Person 1: there goes Bryan and Mandy they are always together
Person 2: yeah they’re like conjoined twins or something
person 1: They should change their name to Mryan
by deck man January 12, 2006
 
4.
A Pair of sad MOFOs that are stuck together
i saw a conjoined twin pissing out of the same #$#!@.
by Colin F. November 04, 2003