Word Class: 
That's it, nothing special, no reason,
nothing important. This particle is typically added to the end of some statement. Its function is to downplay the significance of what is said, suggesting that it is unimportant and not very interesting. People often tag it on at the end of telling a story.
Kurungurr Example:
Ngayim napa wudupungngi ge yenim, tyaminnapa!
She feeds and looks after me, that's all.
Kurungurr Example:
Tyaminnapa perrety meny.
He just died (there were no suspicious circumstances).