scratch one's head
verbEtymology scratch + one's + head
1
Idiomatic To puzzle, ponder, or wonder about something.
- Faced with a box full of hundreds of small parts and forty pages worth of assembly instructions, he could do little more than stand there and scratch his head.
- But Sunderland will be left scratching their heads at the result after creating enough chances to have won two games in a refreshingly open and frantic first period.2010 December 28, Owen Phillips, “Sunderland 0 - 2 Blackpool”, in BBC:
- Related terms
- head-scratcher, head scratcher, head-scratching, head scratching, SMH, smh