"Sheep's eye" is a relatively uncommon phrase that typically refers to the way someone lovingly gazes upon their partner, often with a suggestive connotation. There are many synonyms for this phrase, including giving someone a "come-hither look," giving someone the "eye," sharing a "flirtatious glance," having "bedroom eyes," or simply looking at someone with "lustful intent." Each of these phrases carries a slightly different tone or meaning, but they are all used to describe that special kind of sultry, seductive look that can communicate so much without a word.