K = Kink (One or more of their kinks)
He likes bondage and blindfolds on either his partner or himself. He enjoys the unpredictability of it on himself and on his partner, he enjoys being in control of their pleasure.
V = Volume (How loud they are, what sounds they make)
Tryndamere starts out with low grunts but the closer to orgasm the more he roars in pleasure. It sounds more animal than human with him.