be scratching your head

be scratching your head

COMMON If you are scratching your head, you are puzzled and unsure about something. The viewer is left scratching his head as to why Brown should have gone to all the trouble. Relief workers outside were scratching their heads about what to do next. A lot of people are scratching their heads and saying, `What are we doing? Are we getting our money's worth?' Note: You can also talk about head-scratching. There had been much head-scratching among BBC executives who hadn't then thought up a suitable name for the show.
See also: head, scratch