Just Kait Share definition Flag An amazing singer/guitarist/drummer who is even the theme song for MTV's Parental Control. Basically, she PWNS. Sick- Just Kait U Suck- Just Kait Just Kait by JamTOtheGlam July 9, 2010 0 0 Get merch Get the Just Kait mug. Buy Now — $32.95 See more merch