Side eye

[Becky]

A facial expression expressing ones criticism, disapproval, animosity, or scorn of varying levels of intensity towards another person. Defined by one person looking at the other out of the corner of their eye(s) with a scowl, as their head is turned in a different direction. Often an invitation for a fight or confrontation of some sort. Synonymous expression: cuttin your eyes (at someone). Popular expression (and common occurrence) among urban American populations.

[Jessica]

To give someone a knowing look. Usually when shocked or surprised by something.

[Becky]

Description. When a member of the opposite sex looks from the corner of their at you in a obvious but discrete (obviously-discretely) way whilst in the company of their partner.

[Little_Girl]

a look in which you move your eyes to the side without turning your face, showing that you are annoyed by someone, do not respect them, or do not believe what they are saying: