1 definition by Master_Puppet

5t4s

A stupid label for the site Tumblr made by stupid people to supposedly weed out the "n00bs" from the "actual, hardcore" Tumblr originals. Basically it is the virus that is turning Tumblr into another elitist Myspace and Facebook.

Tumblr user: Dude! You need to put "5t4s" on your blog so that everyone can tell that your not one of the Facebook retards that's going to ruin Tumblr!
Other Tumblr user: YOU'RE an idiot. GTFO

by Master_Puppet February 7, 2011