It's an Internet joke: you end a phrase with "deez", which makes someone ask "deez what" because it's an incomplete sentence, and they respond with "deez nuts".
It's not rude; it's hilarious.
Friend, you're overthinking this. It's not malicious, it's not to attack you, and it's not to be rude.
It's just a joke.
It's like responding to a question with "yo mama". It's nothing but a piece of juvenile humor, nothing more.
Now you are bringing my mother into this, calling me a juvenile and I don't appreciate it. If you don't stop these unnecessary insults I will have to report you and DScraps to this instance moderator for harassment.
Please refer to my previous comment, ligma,