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A person who mostly only eats in a social setting where others are eating.
Phil: Hey Tom, I almost didn't recognize you walking down the sidewalk. I haven't seen you for a while. Have you lost weight?

Tom: I did and pretty fast.

Phil: How?

Tom: Now, I mostly just eat socially.

Phil: What, you are just a social eater?

Tom: Yeah, it works great to stay fit.
by Long Beach Lingo September 03, 2016
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