when one's relationship with someone else has been declared official via the internet.
a less-gay way of saying "facebook official"
guy 1: so are you and that girl dating yet?
guy 2: yea man, we're e-fficial.
guy 1: aw, shit's real.
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When you are super EXTRA on the interwebz, which is in stark contrast from how you normally speak.
Brad: "Man...Karen was so e-fficial in her email, but I just heard her cussing out her ex-husband at break. I hate Karen."