I meant I can't explain this in the way we learnt exactly in Persian by English equivlants but it works temporarily !
No, you can't use this structure for all the words(adjs) just certain words. tanhameh is wrong.
you know I can't tell you any specific rule, it is used just for some words in spoken informal persian.
for example: khoshesheh is correct! means he or she is enjoying him'herself! or she or he is happy!
as a question we ask: khoshet hast? just you should see and listen to the movies and serials maybe songs in Persian to know and memorize them, in addition there are not too many words u can use in this way and as an native speaker I can't list them all for you cause I can't remember them at the moment.
If you faced anyother one let me know :)