bang (one's) head against a wall

(redirected from bang their heads against a wall)

bang (one's) head against a wall

To attempt continuously and fruitlessly to accomplish some task or achieve some goal that is or seems ultimately hopeless. I feel like I've been banging my head against a wall trying to understand this math equation. Some people are never going to agree with you on this, so it's no use banging your head against a wall trying to convince everyone.
See also: bang, head, wall
References in periodicals archive ?
Some children with bipolar disorder may rake their arms with razors, pins, or other sharp objects, hit themselves, or bang their heads against a wall in an attempt to self-mutilate (Papolos & Papolos).