in law, n.Definitions

The In-law is difficult — Of all our wife's relations we generally like ourselves the best.

The In-law is generally the most troublesome of all the laws we have to contend with.

The In-law is a matching set of warm bodies acquired along with one's spouse as part of the matrimonial package.

The In-law is a team of natural adversaries in whom you may see reflected, as in a funhouse mirror, all the irritating quirks you had barely noticed in your beloved.