Top definition
A game which sucks up time, energy, and a whole lot of writing skills that can be otherwise used for more productive purposes. Otherwise known as "The Thirteenth Dimension."
13D is making my grades go down like crazy and all my friends haven't seen me because I haven't come out of my basement in forever!
by Alea May 05, 2005
Get the mug
Get a 13D mug for your cat Rihanna.
buy the domain for your cat vlog