Fishball sauce is the one used by Filipino street food vendors as a one-for-all dipping sauce. It is used for fishball, chicken balls, squidball, kikiam, kwek kwek, tokneneng, dynamite or whatever new invention they come up with.
This is my version of Manong's sauce which is a term we also use to refer to this dip, while we normally call the seller, Manong, a term of address for an eldery man or older brother as a sign of respect.