dash someone's hopes

dash someone's hopes

Destroy someone's plans, disappoint or disillusion. For example, That fall dashed her hopes of a gold medal. This term uses dash in the sense of "destroy," a usage surviving only in this idiom. [Second half of 1500s]
See also: dash, hope
References in periodicals archive ?
Not dealing can worsen the situation, because the longer you wait to dash someone's hopes, the more intense the feelings of rejection.