Where one receives many notifications and messages from people that one likes either as friends or desires in a more serious manner. A good Facebook day will generally leave said person in a good mood, feeling satisfied about one's social life (to the online extent).
1.) Bro I was overwhelmed yesterday when i got like 3 notifications and 2 messages all at the same time, even one from that person i've been getting at in biology class! It was a good Face book day

2.) Haha Joe was on Face Book for the entire day yesterday checking over and over again like he was expecting someone to comment on something. He must've had a bad Face Book day.
by Chris Vonzentner October 28, 2011
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Adjective/Noun Used to describe a girl who has a face that you would really, really like to see giving you head. Way more than a regular girls face.
by DKM April 11, 2006
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