Meaning
What does Beady Eyes mean?
Beady eyes are a descriptive expression to eyes, that are shining, glittering but with a deep malicious intent.
Alternatively, being “beady eyed” may describe a person’s eyes to be glimmering by suspicion or skeptical about someone or something.
Origin
What's the origin of Beady Eyes?
The word bead had been present in the English language since the 14th century, referring to the beads of a rosary.
The expression “beady eyes” however had only appeared in the 19th century, around 1826, describing a malicious, dark look on someone.
Spread & Usage
How did Beady Eyes spread?
The phrase has been in use since the 1800’s, though it is a lot more repressed and forgotten than it was at the time.
Nonetheless, it is still an expression that is frequently encountered and utilized in various contexts and situations.
The phrase appeared on Urban Dictionary in 2005, with a couple of other definitions having been written since that time, all approaching the bead-like glitter in a look from a different perspective.

External resources
- Urban Dictionary – Beady Eyes