Half a seafood entree?

• When repeated, Hawaiian menu item
• When repeated, a dolphinfish
• Hawaiian fish, on menus
• When said twice, a Hawaiian fish
• Half of a fish?
• Half a seafood dinner?
• Polynesian food fish, for short
• Half portion at a luau?
• Half a luau serving?

Wikipedia Word definitions in Wikipedia
Mahi is a name of multiple origins, found in various countries.