Noder neder is a phrase in Hebrew. Noder stands for "I swear", neder is like an oath, a vow. You can use it when someone doesn't believe to something you say and you tryna make him believe you. Also, you use it when something good happens and you wanna tell others. Another use is when someone is trying to prove a point.
1. Bro, noder neder, I didn't steal that money!
2. I won the match, noder neder!
3. I didn't understand, noder neder, what a tasbich