Someone with whom you converse on a semi-regular basis via Facebook, but almost never in person. Should you legitimately meet said acquaintance face-to-face, neither one of you will act as if you know or have ever talked to the other.
-Hey Gil, are you ever gonna get the cahones to ask Katie out?

-Nah, I don't know how to approach her and talk to her for real. We're only Facebook acquaintances.
by ct110 June 18, 2010
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