It's possible someone created it by combining the following phrases:
* "Eye-ball": This refers to looking at something directly.
* "Even-steven": This means equal, balanced, or fair.
However, the combination doesn't create a clear or established phrase.
Here's what might have happened:
* Misheard phrase: Perhaps someone heard a similar phrase and misheard it, creating "eye-ball-even-steven."
* Slang or regional term: This could be a term used in a specific community or region that is not widely understood.
* Made-up phrase: Someone might have created the phrase for comedic effect or to emphasize a point in a casual conversation.
To understand the intended meaning, you would need more context.
For example, if you heard it in a conversation, try asking the person who used the phrase what they meant by it.