this expression comes from Hebrew. it is originated in the TV show Traffic Light (Ramzor), and has a similar meaning to "my man". If you meet someone you like, you would go: "What's up, our brother in law?" (Ma kore gisenu?)
Q: "What's up, our brother in law (Gisenu)?"
A: "it's all Sababa!"
by Hefer Guri December 7, 2009
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