Rashi on Genesis 34:14/רש"י על בראשית ל״ד:י״ד

1חרפה הוא THAT WERE A DISGRACE — Amongst us it is somewhat of a blot on our pedigree, for if one wishes to revile another, he says to him: “You are an uncircumcised person”, or “the son of an uncircumcised person”. The word חרפה always means “reviling”.