Top Definition
1.common boys name that refers to the ocean.

Boys with this are refered to as brainy, and geeky, but at the same time, usually very cute.

2. A very good looking individual that is connected to the water in some way
whoo.....isnt Kainalu like the hottest person you ever met
by bob11232 August 28, 2007
1 more definition
Literally means "ocean wave" in the Hawaiian language.
We paddled out and surfed some big powerful kainalu today.
by Shay G February 12, 2010

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