Apparently in Japan there is this phrase from the gundam series that is pretty famous. It goes something like this: "Even my father never hit me". They use this as a joke in many anime. (I think it's like if you say "luke i am your father" or "there is no spoon" everyone knows it's from star wars/matrix)
It's always in the form "Even my father [never did something]"
I found two in one piece. The first is very early in the series, when Luffy beats Helmeppo, he rephrases it literally: "even my father never hit me". And in chapter 369 Wanze uses the pun again. On page 14 after Sanji called him super weak, Wanze says: "Even my father wouldn't say that to me!" (I am pretty sure this is the pun, it wouldn't make much sense to say something like that otherwise)