a friendly way to desribe friends with giant eyes that pop out of their skull.
8-O

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.

an alternative to puppy dog eyes or big sad eyes

A cow eye is the "over-the-shoulder look" you receive from a female partner during doggie-style vaginal sex, by surprising her with anal intercourse without prior notice.

How a females eyes look when she attempts to look in the eyes of the person she is giving a blow job.

the act of intentionally lowering one's eyelids halfway (in a cow-like manner) when looking upon someone with boredom, anger, or disgust

When a man loves a woman they do a sweet thing called making love. Although to consemate such actions a bj may be demanded by the greedy lover (man), now a cow eye is when cum is shot into eye of the poor unsuspecting girl.