Trashtalk is being developed by Joonas Turner, who also does the voice acting in the game for all of the characters except for Yung Venuz (which is done by Doseone ), Rebel, and the Female I.D.P.D. (which are done by Isa And aka Chisaleya).
In the PAX East Trailer for Nuclear Throne the narration is done in Trashtalk, which is subtitled. using this the following observations can be made.
|RHAÄVE'SHO||Our lives are hard|
|FLÄÖWEN||Still, we try|
|FLSTH'KHUN||Will it always be this way?|
|KHUNORI||Something needs to change|
|KHUNÄÖFAAI||We know it can change|
|FLÄÖI||We have to try|
|KHA...||We have to reach..|
|FLÄISUM||The Nuclear Throne|
|FLÄSHYN||Let's do this!|
Joonas also mentioned in a livestream that he will release more information and language details in the future.