IDONTKNOW
Set to 3 different clues across 3 published puzzles, most often "Beats me" — The New York Times, Friday, 28 April 2006.
9 letters
Every clue on record, most used first
- "Beats me"once
The New York Times — Friday, 28 April 2006
- Too-seldom-heard replyonce
The New York Times — Friday, 30 March 2001
- What a shrug might meanonce
The New York Times — Saturday, 23 October 1999