Facebook rush 

The rush of having someone comment on your status update. The rush of the feeling of pleasure that a lonley person gets when they get attention on the ineternet. Most of the time it's people who possess 200 or more friends but still rarely get comments and likes on their status updates and ends up feeling depressed and down as a result.

It's just a facebook rush, buddy. It's not real life. Nobody cares about you have to say so shut you're gay ass up and fuck friends.

Facebook rush by YO U got no friends April 21, 2010

Facebook Rush Hour 

1.The time of day when your list of friends on chat exceeds from one friend online to forty friends online.

2.The time of day when everyone is logged into facebook. Usually between 4:00-5:00

Man 1: Dude, I was on facebook yesterday at 4:30, there were so many people on my facebook chat broke.

Man 2: It must have been Facebook Rush Hour.

Facebook Rush Hour by Phil Muhweenuh April 15, 2010