Ba’t is the short form of the question word Bakit.
This shortened form Ba’t is never used alone. There has to be some other word after it.
= Ba’t ganito?
Why like this?
Bakit ka nandito?
= Ba’t ka nandito?
Why are you here?
Translation of the English word “bat” ?
a bat (club) used to hit something or someone
a fruit bat
Note that the Tagalog word kabag has another unrelated meaning, which is flatulence or gas in the intestines.
a bat like the one associated with Batman