[stingk ahy] noun
1. a facial expression of distrust, disdain, or disapproval; also called skunk eye, hairy eyeball
Example
“That cow knows I had a burger for dinner. Why else would he be giving me the stink eye?!“
Word Origin – 1962
I stumbled onto this herd of cattle while I was out surveying the Fall foliage. That’s a stink eye if I’ve ever seen one!
Cedarmeade Studios 
The expression is truly scary!