What is Ba-na?
1.
Usually the final proclamation when something is finished. An announcement, that you are done, here, finished something, bragging. ect.
(My aunt heard this when she was younger, the man saying it, swore it was not Ta-Da but Ba-Na. So thought I would share ;P)
"Ba-naaa!, I have arrived."
"I have finished this paper, Ba-Na!"
See