What's the meaning of 'na nie' in Piosenka na nie of Makowiecki Band

Oi, lads and gals from the world over.
Long and short is I adore Makowiecki Band. And one of my my fav pieces they sing is called 'Piosenka na nie'. But what's the meaning of 'na nie'? I did a google search, but to no avail. Just my luck lol

Btw I also heard 'na tak', for instance 'jestem na tak'. What on earth should that mean?)
Many thanks in advance, and recommend Makowiecki band to everyone who mightn't have listened to them yet.

Do you know contest shows such as Idol, X Factor, Mam Talent, You can dance?
So it's famous slogan which appeared for the first time in such shows and step into colloquial language.
A jury member says: Jestem na tak when he/she approve a candidate for the further contest. Jestem na nie when he/she doesn't.

However expression used in Makowiecki's song has nothing to do with the latter. He sings that he sends a song "for no" as gift for those who are sad/depressed. You should read this as if he sends a song with a negative energy, a song which is not cheery and happy but pessimistic (therefore probably thruthful, honest... as the one line says: there one can sing what he wants).

Bear in mind that I've never heard that song, I've just checked the lyrics for you.


of course when used in colloquial language it mean I support (this idea)

thank you all immensely, indeed!
All songs by Makowiecki Band are really beautiful , check them out, it'll pay off!