DUHS

Set to 10 different clues across 10 published puzzles, most often “Interjections from the obtuse” — The New York Times, Saturday, 25 June 2011.

4 letters

Every clue on record, most used first

Interjections from the obtuseonce
The New York Times — Saturday, 25 June 2011
Stupidity syllablesonce
The New York Times — Wednesday, 11 May 2011
Cries from the momentarily stupidonce
The New York Times — Wednesday, 31 March 2010
Dim responsesonce
The New York Times — Sunday, 24 September 2006
Popular rejoindersonce
The New York Times — Sunday, 11 January 2004
Sure signs of densityonce
The New York Times — Sunday, 16 March 2003
Simps' syllablesonce
The New York Times — Sunday, 7 November 1999
Silly syllablesonce
The New York Times — Monday, 7 December 1998
Dummies' repliesonce
The New York Times — Monday, 15 September 1997
Morons' commentsonce
The New York Times — Saturday, 16 March 1996