A joint debtor refers to two or more people who are equally responsible for repaying a debt. This means that if one person cannot pay, the other person(s) will still be obligated to pay off the debt. Full definition
Can a creditor double their money after a default by joint debtors? (law.stackexchange.com)
Mesa West's release of independent counsel in a settlement agreement did not release attorney because attorney and independent counsel were not joint debtors; (calattorneysfees.com)
More importantly, as joint debtors each spouse becomes liable for the activities of the other, and each is responsible for making any payments. (familyllb.com)