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1. The point of information (including photos, posts, tags etc.) extending beyond the reasonable or normal viewing practices of typical Facebook users. Works as an bottomless hole of information in which a person can wander into on Facebook; an endless scrolling timeline.

1. The process of viewing a person's Facebook profile beyond normal viewing practices (see definition of noun above)
"Dude, its 2012, why are you in my girlfriend's Face-abyss?"

"Cause I wanted to know who she was with in high school..."

"Hey, Steve, did you see Tim's picture from when he used to be fat on Facebook."
"Bro, you were Face-abyssing him back to 2009?"
"Dude, I'll admit, I went way too far..."
by Gayle Lewis - Manside Mansion October 01, 2012
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