Hey there Ramil!
So you can add my name to the list of folks who have never heard this expression before.
I did check out the Google search you did and it seems that "eyes and thighs" have many different meanings for being found in the search.
Examples from the first three pages of results:
By "Eyes & Thighs" I am referring to the Vitamin K injection and antibiotic eye ointment that are routinely administered to newborns shortly after the birth.Two Blog entries by that title:Mr. Bones Jones and Eyes and Thighs (a YouTube "music" video)
1.about someone getting older and having both trouble walking and vision problems.
2.about a mom talking about her daughter's pink eye and how to make Burnished Chicken Thighs with Roasted Sweet Potatoes, Parsnips & Shallots.
As new research claims that girls as young as five are dissatisfied with their image, Lisa said her 13-year-old daughter Emily wants cosmetic surgery on her nose, eyes and thighs. She has wanted to lose weight since she was eight.Women with these beauty problems should avoid these foods until their bodies detoxify by slowly eliminating their calcium stores. The body precipitates these out through body wastes, hair and finger nails. Their eyes and thighs should look better when the calcium gets under control.Drawing a Cartoon Frog Step 2: Add Eyes and Thighs to Your Cartoon Frog Drawing.
So, that brings the question, where did you come across this expression???