also stylistically spelled as 'pucha'
This is a mild expletive frequently seen in the phrase Putsa talaga.
Similar-looking Tagalog word, but much harsher in tone: Puta.
It's possible that putsa is an alteration of the word puta to make it milder in tone.
Examples of such expletives in English: heck from hell, dang from damn
A harsh version: putragis