Gibbar is an intensive Aramaic form meaning a great or mighty man, a hero. It is the Aramaic equivalent of the Hebrew gibbor (H1368). In Ezra 2:20, it appears as a family name — likely a clan known for its warriors. The name encapsulates the ideal of courageous, capable manhood.
Biblical masculinity in the OT is framed around the concept of the gibbor / gibbar — not brutal domination, but strength deployed in covenant faithfulness. David's "mighty men" (gibborim) were famous for acts of extraordinary loyalty and courage. The NT reframes this through Christ: the true gibbor is the Lion of Judah who, paradoxically, conquers through sacrifice. True strength is found in dying to self.