do (one'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 your head in

mainly BRITISH, SPOKEN, VERY INFORMAL
If something or someone does your head in, they make you very unhappy, upset or confused. During her year off she worked at a boutique in Bromley, doing things like cleaning coat hangers. `It did my head in,' she laughs. My computer keeps crashing and it's doing my head in.
See also: head