Mother-in-Law

A Mother-in-Law can be one of many things:

For men:

 * 1) The total bitch that is the mother of that fabulous piece of ass you finally shacked up with.
 * 2) The fabulous piece of ass that is the mother of that total bitch you finally shacked up with.
 * 3) Your wife's mother.

For women:

 * 1) The total bitch that lives with you because you husband has no balls.
 * 2) The total bitch that you live with because your husband has no money.
 * 3) Your husband's mother.