get to the bottom of something

get to the bottom of something

COMMON If you get to the bottom of a problem or mystery, you discover the truth about it. The attack was quite severe. We intend to get to the bottom of things and, if needs be, ensure that action is brought against those responsible for it. The secrets of a truly happy couple are ultimately a private mystery, but we've tried to get to the bottom of it.
See also: bottom, get, of, something

get to the ˈbottom of something

find the true cause of something or the solution to something: We’re determined to get to the bottom of this mystery. OPPOSITE: scratch the surface (of something)
See also: bottom, get, of, something