I heard the expression "something is beyond your kin", see an example:
Woman, you're playing with forces beyond your kin.
I can't find a way to fit any of the entries of the definition of 'kin' in this context. Anyone?
EDIT, I actually misunderstood
ken. The kick back from the previous statement shows it:
Sheldon: "Woman, you're playing with forces beyond your ken." Penny: "Yeah, well your Ken can kiss my Barbie".