TL;DR: one new word {valqe'} "bat (animal)"
(Does Dr. Okrand think that Val Kilmer was the best Batman?)
Okrand has used *{qe'} to transliterate the letter "K" in {'oqe'} (OK, a reference to the O.K. Corral), so {valqe'} could plausibly be "Val K.".
As well, the word {val} means "be clever, smart, intelligent" and is in the original edition of TKD, which came out in 1985. The Val Kilmer movie "Real Genius" came out in August 1985, the same year as TKD1ed. So both {val} and {valqe'} seem to be references to Val Kilmer.
I wonder if Klingons think bats are a particularly clever animal?
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De'vID