A term which, when used, certifies the ignorance of the user.
The word you are scrabbling for is "voilà". It is
Frenchie-French-French, and is "used to call attention, to express
satisfaction or approval, or to suggest an appearance as if by magic"
according to the Merriam-Webster dictionary, which is not
Frenchie-French-French, and thus may be relied upon. It is similar to
"viola" but is much less unpleasant.
In other news, the word is "Dalek" (DAH-lek). Not Darlek (DAR-lek) or Daylek (DEY-lek).
To paraphrase T.S.Eliot "How unpleasant to meet Mr. Aardvark...".