Spoomonkey termed it really well in a different thread that I can't find right now, but he used Anchor. The fact that one side of the couple is dragging the other down.
I guess we have just gotten used to seeing them in the lifestyle. We typically see them most often as the husband, but we have seen enough wife anchors also.
We have had way too many times especially with online profiles, that we will get really excited over a profile and they only have pics of the wife. We now realize this is "code" for the husband is an anchor, because almost everytime when we get additional pics, we have to decline because the guys is just...well you know.
-Van