unkink

un·kink

 (ŭn-kĭngk′)
v. un·kinked, un·kink·ing, un·kinks
v.tr.
To remove kinks from; make straight.
v.intr.
To become relaxed.

unkink

(ʌnˈkɪŋk)
vb (tr)
informal US to relax the muscular spasm or tightness in (the body or part of the body)
vb (intr)
informal US (of the body or part of the body) to relax after being tight or in spasm
References in classic literature ?
It took me the rest of the run in to unkink my complaining joints and muscles and get into a standing position on the lower step.
I felt my shoulder muscles unkink as I pictured the happy ending.
Such a rotational mode does not contribute to the relaxation of an applied stress, since it does not help unkink twisted segments.
In my day, girls kinked their necks by sleeping all night on 3-inch rollers to unkink their hair.
So somewhere to sit, unkink the back and inspect the blisters is essential.