Josh and Crispo's definitions

addered

The action of cheating where you are the individual with whom a person in a relationship is cheating.

or

The action of cheating in which you are not in a relationship, but the person with whom you're fratternizing with, is.

AKA = the other man or the other woman

Monika Lewinsky addered with Bill Clinton.

by Josh and Crispo October 19, 2004