Top definition
A verb originating from New Zealand, whereby one person says something outrageous/borderline/embarassing, and another second person says 'hytro'.

The first person has to either do what they said, and if they can't/won't then they have to shave a slit in their eyebrow, that is UNLESS the first person says 'Jumanji' after their comment, before someone says 'hytro'.
First Person:"I desire to engage in sexual intercourse with that female homo sapien over yonder."

Second Person: "Hytro"
by 123Snowy456 October 14, 2011
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