A more thorough explanation:

A co-obligor is a person who has agreed to take on a responsibility or obligation along with one or more other people.

For example, if two people co-sign a loan, they are both co-obligors. This means that they are both responsible for repaying the loan, even if one of them cannot pay.

Another example is when multiple people are named as defendants in a lawsuit. Each defendant is a co-obligor because they are all responsible for defending themselves in court and potentially paying damages if they lose the case.

Overall, a co-obligor is someone who shares a legal obligation with others and is responsible for fulfilling that obligation.