A complex portmanteau word. "Exactly" + "Accurately" = "Exactulately". Not just exact, not just accurate - but both.

Possibly (er, exactulately) derived from a brief verbal stumble in a youtube video on the Tested Channel about "Inside Adam Savage's Cave: Model Making for Movies".
That is exactulately the situation we face, no one could have said it better.

Exactulately what do you mean?
by —thoughtstorms— July 3, 2017
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