ok i found iT on SPNfanwiki XD and i though that it would be fun playing it here so:

Ok so basically this is a fun game. I'll start with a Dean/sam/cas"any SPN related quote and you guys finish it and start your own for the next person to finish it and so on and so on.

Example: Dean: You got wasted by......... then the next person finishes it like Dean: You got wasted by a teenage mutant ninja angel?
It can be any quote related to SPN..
I'll Start:
Dean: " Demons I get........"
**now you finish it! :D