look up any word, like pussy:
 
1.
Ghetto Social Mobile App advertised as a fun way to meet ppl, but really where ppl post and send pictures of their dicks, including the perv CEO. Full of booty shots and penises. Sign up to get an inbox full of creepy mesaages and pictures!
Girl 1:What's wrong u look traumatized?
Girl 2: Oh my god dude, I download the app Skydeck, bc I saw an ad, and am now traumatized by overload of nasty penis
Girl 1: oh yeah that thing, it's like a ghetto pervert version of Instagram, it should be renamed instaghetto. I heard the creator is a perv and his dick is all over 4chan.
by TraumatiZedbypenis May 19, 2013
 
2.
The leaving of fecal matter on top of the tank of ones toilet. One level higher than the upper deck.
I just upper decked that toilet, i need to one up this. I guess it's time to sky deck.
by Craig Y. June 01, 2010