Answer: DOH

AnswerCrossword Clue
DOH2001 OED addition that cites "The Simpsons"
DOHHomer Simpson cry
DOHPlay- ...: modeling compound
DOHPlay-..
DOHQuote from Homer
DOHPlay conclusion
DOHHomeric interjection?
DOHOutburst from Homer
DOH"Stupid me!"
DOHCartoon "How dumb can I be!"
DOHHomer's outburst
DOHHomer Simpson outburst
DOHWord spoken with a head slap
DOHBlunderer's cry
DOHHead-slapper's cry
DOH[Facepalm!]
DOH"How stupid of me!"
DOH"I'm such an idiot!"
DOH"Silly me!"
DOHHomer call?
doha musical note
DOHDunderhead's "oops"
DOH"...-in' in the Wind" ("Simpsons" episode in which Yo La Tengo performed the closing theme)
DOHSimpsonian utterance
DOHExpression from Homer Simpson
DOHFirst note (var.)
DOHHomer's expletive
DOHSimpson's "Rats!"
DOHHomer's outcry
DOHHomeric cry
DOHCry from Homer
DOH"I blew it!"
DOHHomer's "Phooey!"
DOHInterjection coined on "The Simpsons"
DOHOED entry that cites "The Simpsons"
DOH"The Simpsons" exclamation
DOHA word from Homer
DOHExclamation popularized by "The Simpsons"
DOHHomer's cry
DOH"I can't believe I just did that!"