FB:OD simply stands for facebook overdose. The colon is there for like no reason, but FB:OD occurs when someone gets on facebook without expecting much, and has an excessive amount of notifications, causing them to be overwhelmed, and leave without reading them all.
Jesus tits, I check my phone and look back at facebook only to see 17 notifications. FB:OD
by Pocketzest October 03, 2012
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