Chinese

		hang (a criminal); to turn; to twist hang (a criminal); to turn; to twist; to wind	to use up; to exhaust; to end to use up; to exhaust; to end; to finish; to the utmost; exhausted; finished; to the limit (of sth)
trad. (絞盡腦汁)		絞	盡	腦汁
simp. (绞尽脑汁)		绞	尽	脑汁

Idiom

絞盡腦汁

1. to rack one's brain