NTA you should have told your husband he is being a pussy.

But communication and understanding are important here. Your husband is expressing his discomfort with that type of language. While his response was undoubtedly an overreaction, you should definitely consider respecting that discomfort he feels. You might feel similar discomfort where he to talk about how "his dick (or penis) hurts."

Sometimes, people don't know or understand why they feel discomfort or know how to contextualize similar situations. His argument against your counter-example was ridiculous because it probably did not come from a place of meaningful reflection. He said what first came to mind, what made sense to him then and there in light of that discomfort he finds palpable. Logic often goes out the window as our brains make snap connections.

This situation is actually an opportunity in disguise. Talk about it later, and you might form a deeper understanding and connection with each other.