Top Definition
1. a small water born creature .

2. all kids that clog up the line-up at your favorite surf spot , the first syllable is derived from the word hell describing all the chaos they cause in the water .
Bro : ' good god dooooode , there were so many hellgamites in the water causing mayhem was like a chaotic romper room out there .

PP : no shit .
by Mike Ferrari January 20, 2008
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