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![to [beat] {one's} brains out](https://cdn.langeek.co/photo/29665/thumb/350?type=jpeg "to [beat] {one's} brains out")
to try one's best in order to solve a problem or to understand it
![to [blind] {sb} with science](https://cdn.langeek.co/photo/44860/thumb/350?type=jpeg "to [blind] {sb} with science")
to confuse someone by using difficult or technical words while describing something to them
used to describe a situation in which someone remains uninformed or unaware, typically after an event or the receipt of information
![to [get|have] {one's} wires crossed](https://cdn.langeek.co/photo/66644/thumb/350?type=jpeg "to [get|have] {one's} wires crossed")
to fail to correctly understand or interpret what someone said
![to [lose] the plot](https://cdn.langeek.co/photo/45056/thumb/350?type=jpeg "to [lose] the plot")
to be unable to comprehend what is happening around one
a state in which one does not understand the current situation due to being completely detached from reality
used when one is completely unable to guess or understand something
used as a response to mean that one does not have any answer to a particular question
모르겠어요., 나를 찾아봐.
in a state or place that is unknown or unseen, particularly referring to where people go after they die
used to refer to something that is complicated or difficult beyond one's understanding or capability
a subject that is very challenging or boring to one
맹점, 약점
![to [be|sound] (all|like) Greek to {sb}](https://cdn.langeek.co/photo/61330/thumb/tough/350?type=jpeg "to [be|sound] (all|like) Greek to {sb}")
used for saying that one is unable to understand the meaning of something particular
