interfacial marriage 

One's hot when the other's not. A relationship mismatched on the level of attractiveness.

Dude's totally in an interfacial marriage. Have you seen the woofer he has settled with?

interfacial marriage by Etch May 15, 2007

interfacial marriage 

A marital union including two people of unequal yoking in the looks department.

Interfacial marriage is on the rise with new unions such as that between Donald and Melania Trump.
The Supreme Court just declared interfacial marriage unfortunate, though legal.

interfacial marriage by Cassie & Joanna May 11, 2007