A more thorough explanation:

Definition: "Pre-dup" is a term used to describe a type of agreement that couples who are registering as domestic partners can make before they get married. This agreement is similar to a prenuptial agreement, which is a legal document that outlines how a couple's assets will be divided in the event of a divorce.

Example: John and Jane are planning to register as domestic partners. Before they do, they decide to create a pre-dup agreement. In this agreement, they outline how they will divide their assets if they ever decide to end their relationship. They also include provisions for how they will handle any joint debts they may have.

Explanation: The example illustrates how a pre-dup agreement works. John and Jane are not married, but they want to make sure that they have a plan in place in case their relationship doesn't work out. By creating a pre-dup agreement, they can avoid any potential conflicts or misunderstandings in the future.