There is a distinct difference in pronunciation between what is under a
woman's pasties and what is on the end of a cow's udder.
However, I guess he was technically correct.
Udder :
2. One of the breasts of a woman. [R.]
[1913 Webster]
However having had to actually milk a cow, I can say there is very little in
common between two legged and four legged variety. Unless someone proposes
bovine suffrage, it's likely to stay that way.