do someone's head in

do (one's) head in

To cause one to feel bewildered. Primarily heard in UK, Australia. All of this traveling for work has started to do my head in—I don't even know what day it is!See also: head

do someone's head in

cause someone to feel annoyed, confused, or frustrated. British informal 1997 Sunday Telegraph Now psychobabble has become part of our vocabulary—and it's doing Theodore Dalrymple's head in. See also: head