Definitions by The Guy In The Silver Shorts

1st Rule Of Tumblr

The 1st Rule Of Tumblr Is, Your Facebook Friends Should Never Know About Your Tumblr

Person A: "Dude My Fb Friends Keep Postin Dumb Shit All Over My Dashboard."
Person B: "Dude, 1st Rule Of Tumblr"

1st Rule Of Tumblr by The Guy In The Silver Shorts October 14, 2011