Klingons, other than those suffering the aftereffects of the Klingon Augment crisis, generally can't raise their eyebrows, but there are, nevertheless, a couple of ways to describe this facial movement commonly seen in other species, the most frequently heard involving the verb wanHa' "be crooked, bent" (or, more commonly, wanHa'moH "make crooked, crook, bow, flex, bend"), as in Huy'Daj wanHa'moH ("he/she flexes / bends / crooks his/her eyebrow").

Other verbs are also sometimes used:

'ob / 'obmoH
curve, be curved, arced / curve, arch

SIH / SIHmoH
bend, be bent / bend

(qepHom 2020)