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Any sort of incident of occurrence, involving or focusing on a set of twins.
"Wow! "Did you see Tanner's amazing pass to Weston?"
"Yeah, that was quite a twincident"
by G-rel May 04, 2008
7 0
Accidentally becoming pregnant with twins.
Joe: Is she pregnant? Didn't you use a condom?

Sam: Yes I did and it's twins. It was a twincident!
by Twincident June 07, 2011
2 0