I remember how you always…used to look out for me here. When that gang from “P.S.” one-oh-nine would come after me for my lunch money…
The speaker is Hispanic who lived in Bronx when he was a boy.
I googled 'P.S' and 'One-oh-nine' but I can't find any clue that helps me understand this dialogue. (It seems like 'P.S' is not 'Post script' in this dialougue. Please help me!
(My native language is not English. So please be kind to me. :-))