Double spendDouble spend refers to a scenario where someone tries to send a transaction to two different recipients at the same time. Once a transaction is confirmed, it makes it nearly impossible to double spend it. refers to a scenario where someone tries to send a transaction to two different recipients at the same time. Once a transaction is confirmed, it makes it nearly impossible to double spendDouble spend refers to a scenario where someone tries to send a transaction to two different recipients at the same time. Once a transaction is confirmed, it makes it nearly impossible to double spend it. it.