Couplevidual

The freakish phenomenon of 2 people intentionally portraying themselves as or otherwise existing as one person. Examples include such local variations as might be seen on your Facebook friends list, i.e. "Jen N Alex" or "Lisa N Dave" although in years past some have made national headlines, like Brangelina and Bennifer. Individually such people are mildly tolerable, however together they are obnoxious.

Did you see what Lisa N Dave just posted as their status update?

Yeah, I vomited and blocked any Coupleviduals from entering my news feed again.