Wiktionary
hairy eyeball
n. 1 (context slang English) A look askance at someone; a look of disdain or skepticism. 2 (context slang English) A fond look at someone while batting one's eyelashes.
Usage examples of "hairy eyeball".
Instead of answerin' right away, Nunzio leansback and gives me the hairy eyeball for a fewminutes.
The big guy, without putting his dick up, wandered over to the far edge of the cell and intimidated a sad-looking little Mexican guy by giving him the hairy eyeball.
Now Bob finally turned his head, just barely enough to give Al a hairy eyeball, despite the glasses.
McNab's hitting on every woman in the room, and giving Peabody the hairy eyeball while he sucks down your Scotch.