When two songs of lesser enjoyment are crudely mashed together by local radio stations to create a song that is shitty to a power of 2. Although there is arguments that one shitty plus another shitty would yield a less shitty song, this is not true. Is in indirect relation, but should not be confused with the Double Shitty
"Oh no! It's a dirty mix of Macklemore and Robin Thicke they just Shitty Squared these songs!"
When a radio station, such as Z99 or any Ryan Seacrest broadcasting, plays 2 songs of lesser enjoyment in a back-to-back fashion. The term originated when the song Blurred Lines was followed by the ill famed, Thrift Shop.
Example of a "Double Shitty": "Fuck one direction just came on after nickelback we got double shittied"